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Calculators Created by Chandana P Dev
Chandana P Dev
NSS College of Engineering
(NSSCE)
,
Palakkad
https://www.linkedin.com/in/chandana-p-dev-7326221b4/
531
Formulas Created
1748
Formulas Verified
427
Across Categories
List of Calculators by Chandana P Dev
Following is a combined list of all the calculators that have been created and verified by Chandana P Dev. Chandana P Dev has created 531 and verified 1748 calculators across 427 different categories till date.
Air Trip Distribution Models
(1)
Verified
Travel by Air Passengers between Cities i and j
Go
12 More Air Trip Distribution Models Calculators
Go
Analysis of Behaviour
(5)
Created
Equilibrium Equation for Analysis
Go
Created
Strain Difference in Prestressed Tendons given Strain in Concrete at level of Steel
Go
Created
Strain Difference in Tendons at any Loading Stage
Go
Created
Strain in Concrete at Level of Steel
Go
Created
Strain in Prestressed Tendons
Go
Conventional Airport Forecast Methods
(6)
Verified
Domestic Passenger Enplanement
Go
Verified
Domestic Passenger Enplanement in Location i
Go
Verified
Percent Market Share for Airport
Go
Verified
Percent Market Share for Region 'j'
Go
Verified
Percent Market Share of State of total US Market
Go
Verified
Total Scheduled Domestic Passenger Enplanement
Go
Dynamic Viscosity
(2)
Verified
Dynamic Viscosity for Pressure Reduction over Length of Piston
Go
Verified
Dynamic Viscosity given Velocity of Flow in Oil Tank
Go
2 More Dynamic Viscosity Calculators
Go
Force Variation Diagram and Loss Due to Anchorage Slip
(12)
Created
Anchorage Slip given Settling Length
Go
Created
Area of Prestressing Steel given Settling Length
Go
Created
Length of Cable given Slip of Anchorage
Go
Created
Loss of Prestress due to Slip
Go
Created
Pressure Drop given Setting Length
Go
Created
Pressure Drop when Anchorage Slip and Settling Length are Considered
Go
Created
Prestressing Force after Immediate Loss when Reverse Friction Effect is Considered
Go
Created
Prestressing Force at distance x when Reverse Friction is Considered
Go
Created
Prestressing Force Immediately after Loss given Settling Length
Go
Created
Settling Length given Pressure Drop
Go
Created
Settling Length given Prestressing Force Immediately after Loss
Go
Created
Slip of Anchorage
Go
Group Velocity
(8)
Verified
Deepwater Celerity
Go
Verified
Deepwater Wavelength
Go
Verified
Group Velocity for Deepwater
Go
Verified
Group Velocity for Shallow Water
Go
Verified
Group Velocity given Deepwater Celerity
Go
Verified
Group velocity of wave given wavelength and wave period
Go
Verified
Wave Period given group velocity for shallow water
Go
Verified
Wavelength given group velocity of shallow water
Go
Integrated Demand Forecast Framework
(3)
Verified
Average Trip Length given Passenger Enplanements
Go
Verified
Passenger Enplanements
Go
Verified
Revenue Passenger Miles given Passenger Enplanements
Go
7 More Integrated Demand Forecast Framework Calculators
Go
Length of Transition Curve
(9)
Created
Length given Angle of Super Elevation
Go
Created
Length of Transition Curve given Shift
Go
Created
Length of Transition Curve given Time Rate
Go
Created
Length when Comfort Condition Holds Good for Highways
Go
Created
Length when Comfort Condition Holds Good for Railways
Go
Created
Rate of Change of Radial Acceleration
Go
Created
Shift of Curve
Go
Created
Time Rate given Length of Transition Curve
Go
Created
Time Taken given Radial Acceleration
Go
Multi-Airport Region Forecast Framework
(4)
Verified
Airline Service Weekly Departing Flights from Airport 1
Go
Verified
Airline Service Weekly Departing Flights from Airport 2,3
Go
Verified
Travel Times from Analysis Zone to Airports 1 given Percent of Passengers
Go
Verified
Travel Times from Analysis Zone to Airports 2,3
Go
Quality Control in Construction
(8)
Created
Average Non-Conformities in Inspected Unit
Go
Created
Average Proportion Non-Confirming
Go
Created
Coefficient of Variation
Go
Created
Number Non-Confirming in Sample
Go
Created
Number of Defective Units given Reliability Number
Go
Created
Number of Units Tested given Reliability Number
Go
Created
Proportion Non-Confirming in Sample
Go
Created
Reliability Number
Go
Thermal Expansion of Pipe
(3)
Verified
Modulus of Elasticity of Pipe Material given Stress due to Temperature Change
Go
Verified
Movement in Length of Pipe
Go
Verified
Stress due to Temperature Change
Go
4 More Thermal Expansion of Pipe Calculators
Go
Velocity of Piston
(2)
Verified
Velocity of Piston for Vertical Upward Force on Piston
Go
Verified
Velocity of Piston given Velocity of Flow in Oil Tank
Go
2 More Velocity of Piston Calculators
Go
Absolute velocity
(1)
Verified
Absolute Velocity for Mass of Fluid Striking Plate
Go
3 More Absolute velocity Calculators
Go
ACI Code
(2)
Verified
Modulus of Elasticity of Concrete in SI Units
Go
Verified
Modulus of Elasticity of Concrete in USCS Units
Go
Adjustment of Design Values for Connections with Fasteners
(12)
Created
Adjusted Design Value for Lateral Loading for Drift Bolts and Pins
Go
Created
Adjusted Design Value for Lateral Loading for Lag Screws
Go
Created
Adjusted Design Value for Lateral Loading for Metal Plate Connectors
Go
Created
Adjusted Design Value for Lateral Loading for Nails and Spikes
Go
Created
Adjusted Design Value for Lateral Loading for Spike Grids
Go
Created
Adjusted Design Value for Lateral Loading for Wood Screws
Go
Created
Adjusted Design Value for Withdrawal for Drift Bolts and Pins
Go
Created
Adjusted Design Value for Withdrawal for Lag Screws
Go
Created
Adjusted Design Value for Withdrawal for Nails and Spikes
Go
Created
Adjusted Design Value for Withdrawal for Wood Screws
Go
Verified
Adjusted Value for Loading Normal to Grain for Split Ring and Shear Plate Connectors
Go
Verified
Adjusted Value for Loading Parallel to Grain for Split Ring and Shear Plate Connectors
Go
1 More Adjustment of Design Values for Connections with Fasteners Calculators
Go
Aerodrome Reference Temperature
(2)
Verified
Aerodrome Reference Temperature
Go
Verified
Monthly mean of maximum daily temperature for hottest month of year
Go
1 More Aerodrome Reference Temperature Calculators
Go
Aircraft Runway Length Estimation
(1)
Verified
True Aircraft Speed (Mach number)
Go
10 More Aircraft Runway Length Estimation Calculators
Go
Allowable Shear
(1)
Verified
Vertical Stirrup Leg Area when Group of Bars is Bent at Different Distances
Go
12 More Allowable Shear Calculators
Go
Allowable Stress Design for Building Beams
(9)
Created
Allowable Stress for Solid Compression Flange having Area not Less than Tension Flange
Go
Created
Allowable Stress given Simplifying Term between 0.2 and 1
Go
Created
Allowable Stress when Simplifying Term Greater than 1
Go
Created
Maximum Fiber Stress in Bending for Laterally Supported Compact Beams and Girders
Go
Created
Maximum Fiber Stress in Bending for Laterally Supported Noncompact Beams and Girders
Go
Created
Maximum Unsupported Length of Compression Flange-1
Go
Created
Maximum Unsupported Length of Compression Flange-2
Go
Created
Modifier for Moment Gradient
Go
Created
Simplifying Term for Allowable Stress Equations
Go
Allowable Stress Design for Shear in Bridges
(1)
Verified
Steel Yield Strength using Allowable Shear Stress for Flexural Members in Bridges
Go
2 More Allowable Stress Design for Shear in Bridges Calculators
Go
Analysis of Aquifer-Test Data
(4)
Verified
Storage Coefficient from Theis Equation of Transmissivity
Go
Verified
Theis equation to determine storage coefficient
Go
Verified
Theis equation to determine transmissivity
Go
Verified
Transmissivity given Storage Coefficient from Theis Equation
Go
Analysis of Ultimate Strength
(5)
Created
Area of Prestressing Tendon for Known Tensile Strength of Section
Go
Created
Characteristic Tensile Strength of Prestressing Tendons for Known Tensile Strength of Section
Go
Created
Characteristic Tensile Strength of Prestressing Tendons in Presence of Non-Prestressing Steel
Go
Created
Ultimate Tensile Force in Absence of Non-Prestressed Reinforcement
Go
Created
Ultimate Tensile Strength of Section in Presence of Non-Prestressing Reinforcement
Go
Antecedent Moisture Condition (AMC)
(1)
Verified
Curve Number for Antecedent Moisture Condition-III
Go
1 More Antecedent Moisture Condition (AMC) Calculators
Go
Approximate Equations
(4)
Verified
Discharge when drawdown at pumping well is considered
Go
Verified
Drawdown at Pumping Well
Go
Verified
Drawdown when Steady Flow of Unconfined Aquifer
Go
Verified
Transmissivity when Discharge at Drawdown is considered
Go
Arch Dams
(4)
Verified
Intrados Stresses on Arch Dam
Go
Verified
Rotation due to Moment on Arch Dam
Go
Verified
Rotation due to Twist on Arch Dam
Go
Verified
Shear Force given Deflection due to Shear on Arch Dam
Go
5 More Arch Dams Calculators
Go
At Service Load
(8)
Created
Effective Prestress without Conventional Steel at Service Loading Stage
Go
Created
Strain in Concrete due to Effective Prestress
Go
Created
Strain in Tendons due to Effective Prestress
Go
Created
Stress in Concrete at Tensile Axial Load without Conventional Steel at Service Loading Stage
Go
Created
Stress in Concrete Member with Non-Prestressing Steel at Service Load
Go
Created
Stress in Concrete Member with Non-Prestressing Steel at Service Load Having Compressive Axial Load
Go
Created
Stress in Concrete Member without Reinforcement and Compressive Axial Force at Service Load
Go
Created
Tensile Axial Force in Member without Non-Prestressing Steel at Service Loading Stage
Go
At Transfer
(7)
Created
Area of Concrete for Known Stress in Concrete without Non-Prestressed Reinforcement
Go
Created
Area of Concrete given Stress in Concrete in Presence of Non-Prestressed Reinforcement
Go
Created
Area of Non-Prestressed Reinforcement given Stress in Concrete
Go
Created
Prestress at Transfer after Short Term Loss
Go
Created
Prestress at Transfer after Short Term Loss in Presence of Non-Prestressed Reinforcement
Go
Created
Stress in Concrete in Member without Non-Prestressed Reinforcement
Go
Created
Stress in Concrete in Presence of Non-prestressed Reinforcement
Go
Average Daily Influent Flow Rate
(6)
Verified
Average Daily Influent Flow Rate given Hydraulic Retention Time
Go
Verified
Average Daily Influent Flow Rate given Net Waste Activated Sludge
Go
Verified
Average Daily Influent Flow Rate given RAS Pumping Rate from Aeration Tank
Go
Verified
Average Daily Influent Flow Rate given Reactor Volume
Go
Verified
Average Daily Influent Flow Rate given Theoretical Oxygen Requirement
Go
Verified
Average Daily Influent Flow Rate using Recirculation Ratio
Go
Backwater Effect
(4)
Verified
Actual discharge from backwater effect on rating curve normalized curve
Go
Verified
Actual Fall at stage given Actual Discharge
Go
Verified
Normalized discharge of backwater effect on rating curve normalized curve
Go
Verified
Normalized value of Fall given discharge
Go
Barlow's Runoff Coefficient
(16)
Verified
Barlow's formula for Runoff
Go
Verified
Flat Partly Cultivated Stiff Soils with Average or Varying Rainfall
Go
Verified
Flat Partly Cultivated Stiff Soils with Continuous Downpour
Go
Verified
Flat Partly Cultivated Stiff Soils with with Light rain
Go
Verified
Runoff in Average Catchment with Average or Varying Rainfall
Go
Verified
Runoff in Average Catchment with Continuous Downpour
Go
Verified
Runoff in Average Catchment with Light Rain
Go
Verified
Runoff in Flat Cultivated and Absorbent Soils with Average or Varying Rainfall
Go
Verified
Runoff in Flat Cultivated and Absorbent Soils with Continuous Downpour
Go
Verified
Runoff in Flat Cultivated and Absorbent Soils with Light Rain
Go
Verified
Runoff in Hills and Plains with little Cultivation and Average or Varying Rainfall
Go
Verified
Runoff in Hills and Plains with little Cultivation and Continuous Downpour
Go
Verified
Runoff in Hills and Plains with little Cultivation and Light Rainfall
Go
Verified
Runoff in Very Hilly, Steep and Hardly any Cultivation Catchment with Average or Varying Rainfall
Go
Verified
Runoff in Very Hilly, Steep and Hardly any Cultivation Catchment with Continuous Downpour
Go
Verified
Runoff in Very Hilly, Steep and Hardly any Cultivation Catchment with Light Rain
Go
Base Plates
(9)
Created
Area Required by Base Plate
Go
Created
Bearing Pressure given Plate Thickness
Go
Created
Column Depth using Plate Length
Go
Created
Column Flange Width given Plate Length
Go
Created
Column Load for given Base Plate Area
Go
Created
Flange Thickness for H shaped Columns
Go
Created
Plate Length
Go
Created
Thickness of Plate
Go
Created
Thickness of Plate for H shaped Column
Go
Basic Relationship Of Thermodynamics
(1)
Verified
Total Energy in Compressible Fluids
Go
17 More Basic Relationship Of Thermodynamics Calculators
Go
Basic Theory
(10)
Verified
Actual Infiltration
Go
Verified
Cumulative Infiltration given Total Precipitation
Go
Verified
Direct Surface Runoff given Total Precipitation
Go
Verified
Equation for Potential Maximum Retention
Go
Verified
Initial Abstraction
Go
Verified
Initial Abstraction given Total Precipitation
Go
Verified
Maximum Potential Runoff
Go
Verified
Precipitation given Maximum Potential Runoff
Go
Verified
Precipitation given Potential Maximum Retention
Go
Verified
Water Balance Equation for Rainfall
Go
1 More Basic Theory Calculators
Go
Basin Lag for Drainage Areas of the USA
(3)
Verified
Basin Lag for Foot Hill Drainage Area
Go
Verified
Basin Lag for Mountainous Drainage Areas
Go
Verified
Basin Lag for Valley Drainage Areas
Go
Bay Superelevation
(2)
Verified
Depth given Water Surface Slope
Go
Verified
Superelevation
Go
2 More Bay Superelevation Calculators
Go
Beams
(7)
Verified
Beam Width given Extreme Fiber Stress for Rectangular Timber Beam
Go
Verified
Bending Moment using Extreme Fiber Stress for Rectangular Timber Beam
Go
Verified
Extreme Fiber Stress for Rectangular Timber Beam given Section Modulus
Go
Verified
Extreme Fiber Stress in Bending for Rectangular Timber Beam
Go
Verified
Horizontal Shearing Stress in Rectangular Timber Beam
Go
Verified
Section Modulus given Height and Breadth of Section
Go
Verified
Total Shear given Horizontal Shearing Stress
Go
6 More Beams Calculators
Go
Beams
(13)
Created
Beam Buckling Factor 1
Go
Created
Beam Buckling Factor 2
Go
Created
Critical Elastic Moment
Go
Created
Critical elastic moment for box sections and solid bars
Go
Created
Limiting Buckling Moment
Go
Created
Limiting Laterally Unbraced Length for Full Plastic Bending Capacity for I and Channel Sections
Go
Created
Limiting Laterally Unbraced Length for Full Plastic Bending Capacity for Solid Bar and Box Beams
Go
Created
Limiting Laterally Unbraced Length for Inelastic Lateral Buckling
Go
Created
Limiting Laterally Unbraced Length for Inelastic Lateral Buckling for Box Beams
Go
Created
Maximum Laterally Unbraced Length for Plastic Analysis
Go
Created
Maximum Laterally Unbraced Length for Plastic Analysis in Solid Bars and Box Beams
Go
Created
Plastic Moment
Go
Created
Specified Minimum Yield Stress for Web given Lr
Go
Bearing on Milled Surfaces and Bridge Fasteners
(4)
Verified
Allowable Stress for Expansion Rollers and Rockers where Diameter is from 635 mm to 3175 mm
Go
Verified
Allowable Stress for Expansion Rollers and Rockers where Diameter is up to 635 mm
Go
Verified
Diameter of Roller or Rocker for d from 635 to 3125mm
Go
Verified
Diameter of Roller or Rocker for d up to 635 mm
Go
4 More Bearing on Milled Surfaces and Bridge Fasteners Calculators
Go
Bearing Plates
(12)
Created
Actual Bearing Pressure under Plate
Go
Created
Allowable Bearing Stress on Concrete when Full Area is used for Support
Go
Created
Allowable Bearing Stress on Concrete when Less than Full Area Used for Support
Go
Created
Allowable Bending Stress given Plate Thickness
Go
Created
Beam Reaction given Actual Bearing Pressure
Go
Created
Beam Reaction given Area Required by Bearing Plate
Go
Created
Bearing Plate Area for Full Concrete Area Support
Go
Created
Bearing Plate Area for Less than Full Concrete Area
Go
Created
Minimum Bearing Length of Plate using Actual Bearing Pressure
Go
Created
Minimum Width of Plate given Plate Thickness
Go
Created
Minimum Width of Plate using Actual Bearing Pressure
Go
Created
Plate Thickness
Go
Bed Material Load
(1)
Verified
Soil Erodibility Factor given Suspended Sediment Load
Go
2 More Bed Material Load Calculators
Go
Bending and Axial Compression
(3)
Created
Maximum Bending Stress for Load Applied to Narrow Member Face
Go
Created
Maximum Compressive Stress for Biaxial Bending
Go
Created
Maximum Compressive Stress for Uniaxial Bending
Go
Bending Stresses
(1)
Verified
Section Modulus of Transformed Composite Section given Stress in Steel for Unshored Members
Go
9 More Bending Stresses Calculators
Go
Blaney-Criddle Formula
(1)
Verified
Equation for Blaney Criddle
Go
BOD Loading
(4)
Verified
BOD Loading for First Stage Filter
Go
Verified
BOD Loading for First Stage Filter using BOD Loading for Second Filter Stage
Go
Verified
BOD Loading for Second Stage Filter
Go
Verified
BOD Loading to Second Filter Stage given Efficiency of Second Filter Stage
Go
Braking Distance
(12)
Verified
Assumed Brake Application Speed given Distance for Deceleration in Normal Braking Mode
Go
Verified
Deceleration Rate when Distance for Deceleration in Normal Braking Mode
Go
Verified
Deceleration Rate when Distance for Deceleration in Normal Braking Mode is considered
Go
Verified
Distance for Transition from Main gear Touchdown to create Stabilized Braking Configuration
Go
Verified
Distance required for Deceleration in normal Braking mode
Go
Verified
Distance required for Deceleration in Normal Braking Mode to Nominal Takeoff Speed
Go
Verified
Distance required for Transition from Maingear Touchdown to create Stabilized Braking Configuration
Go
Verified
Nominal Turn-Off Speed given Distance for Deceleration in Normal Braking Mode
Go
Verified
Nominal Turn-off Speed given Distance required for Deceleration in normal Braking mode
Go
Verified
Threshold Speed given Distance for Deceleration in Normal Braking Mode
Go
Verified
Threshold Speed given Distance required for Transition from Maingear Touchdown
Go
Verified
Vehicle Speed given Distance required for Transition from Maingear Touchdown
Go
Breaker Index
(13)
Verified
Breaker Depth Index
Go
Verified
Breaker Depth Index given Wave Height at Incipient Breaking with Saturated Breaking
Go
Verified
Breaker Height Index
Go
Verified
Deepwater Wave Height given Breaker Height Index
Go
Verified
Deepwater Wave length given Breaker Height Index from Linear Wave Theory
Go
Verified
Equivalent Un-refracted Deepwater Wave Height given Breaker Height Index from Linear Wave Theory
Go
Verified
Local Depth given Root-mean-square Wave Height at Breaking
Go
Verified
Local Depth given Zero-moment Wave Height at Breaking
Go
Verified
Semi-Empirical relationship for Breaker Height Index from Linear Wave Theory
Go
Verified
Water Depth Breaking given Breaker Depth Index
Go
Verified
Wave Height at Incipient Breaking given Breaker Depth Index
Go
Verified
Wave Height at Incipient Breaking given Breaker Height Index
Go
Verified
Zero-moment Wave Height at Breaking
Go
3 More Breaker Index Calculators
Go
Buttress Dams using law of the trapezoid:
(1)
Verified
Total Vertical Load for Maximum Intensity in horizontal plane on Buttress Dam
Go
10 More Buttress Dams using law of the trapezoid: Calculators
Go
Cable Systems
(1)
Verified
Fundamental Vibration Mode given Natural Frequency of each Cable
Go
3 More Cable Systems Calculators
Go
Calculation of Crack Width
(9)
Verified
Average Strain at Selected Level given Crack Width
Go
Verified
Center to center spacing given shortest distance
Go
Verified
Crack Width on Surface of Section
Go
Verified
Depth of Neutral Axis given Crack Width
Go
Verified
Diameter of longitudinal bar given shortest distance
Go
Verified
Effective cover given shortest distance
Go
Verified
Minimum Clear Cover given Crack Width
Go
Verified
Shortest Distance from Selected Level on Surface to aLongitudinal Bar
Go
Verified
Total Depth of Member given Crack Width
Go
Cantilever and Counterfort Retaining Walls
(1)
Verified
Shear Force on Section
Go
2 More Cantilever and Counterfort Retaining Walls Calculators
Go
Catenary
(2)
Verified
Catenary Length given Tension at any Point of Simple Cable with UDL
Go
Verified
Horizontal Component given Tension at any point of Simple Cable with UDL
Go
2 More Catenary Calculators
Go
Catenary Cable Sag and Distance between Supports
(3)
Verified
Catenary Parameter for UDL on Catenary Parabolic Cable
Go
Verified
Maximum Sag given Catenary Parameter for UDL on Catenary Parabolic Cable
Go
Verified
UDL given Catenary Parameter for UDL on Catenary Parabolic Cable
Go
3 More Catenary Cable Sag and Distance between Supports Calculators
Go
Centrifugal Ratio
(6)
Created
Centrifugal Force Acting on Vehicle
Go
Created
Centrifugal Ratio
Go
Created
Design Speed of Highway
Go
Created
Design Speed of Railway
Go
Created
Radius of Curve given Centrifugal Force
Go
Created
Speed of Vehicle given Centrifugal Force
Go
Check for Stress in Beams
(5)
Verified
Distance from Neutral Axis to Face of Concrete
Go
Verified
Moment of Inertia given Unit Stress in Extreme Fiber of Concrete
Go
Verified
Moment of Inertia of Transformed Beam Section
Go
Verified
Total Bending Moment given Unit Stress in Extreme Fiber of Concrete
Go
Verified
Unit Stress in Extreme Fiber of Concrete
Go
8 More Check for Stress in Beams Calculators
Go
Circular Section
(4)
Verified
Diameter of Section given Depth of Flow in most Efficient channel for Maximum Velocity
Go
Verified
Diameter of Section when Hydraulic Radius is at 0.9D
Go
Verified
Radius of Section given Depth of Flows in most Efficient Channel
Go
Verified
Side Slope of Channel Bed given Discharge through Channels
Go
15 More Circular Section Calculators
Go
Circular Tapering Rod
(4)
Verified
Diameter of Circular Tapered Rod with Uniform Cross Section
Go
Verified
Load at End with known Extension of Circular Tapering Rod
Go
Verified
Modulus of Elasticity of Circular Tapering Rod with Uniform Cross Section Section
Go
Verified
Modulus of Elasticity using Elongation of Circular Tapering Rod
Go
6 More Circular Tapering Rod Calculators
Go
Circulation and Vorticity
(1)
Verified
Circulation using Vorticity
Go
2 More Circulation and Vorticity Calculators
Go
Clark's Method for IUH
(5)
Verified
Discharge at Infliction given Constant K
Go
Verified
Inflow at beginning of time interval for routing of time-area histogram
Go
Verified
Outflow at beginning of time interval for routing of time area histogram
Go
Verified
Outflow at end of time interval for routing of time-area histogram
Go
Verified
Time Interval at Inter-Isochrone Area given Inflow
Go
2 More Clark's Method for IUH Calculators
Go
Cnoidal Wave Theory
(7)
Verified
Elevation above Bottom given Pressure under Cnoidal Wave in Hydrostatic Form
Go
Verified
Ordinate of Water Surface given Pressure under Cnoidal Wave in Hydrostatic Form
Go
Verified
Particle Velocities given Free Surface Elevation of Solitary Waves
Go
Verified
Pressure under Cnoidal Wave in Hydrostatic Form
Go
Verified
Wave Height given Distance from Bottom to Wave Trough and Water Depth
Go
Verified
Wave Height Required to Produce Difference in Pressure on Seabed
Go
Verified
Wavelength for Distance from Bottom to Wave Trough
Go
7 More Cnoidal Wave Theory Calculators
Go
Coaxial Cylinder Viscometers
(6)
Verified
Clearance given Torque exerted on Outer Cylinder
Go
Verified
Dynamic Viscosity given Torque exerted on Outer Cylinder
Go
Verified
Height of Cylinder given Torque exerted on Inner Cylinder
Go
Verified
Radius of Outer Cylinder given Velocity Gradient
Go
Verified
Torque exerted on Inner Cylinder given Dynamic Viscosity of Fluid
Go
Verified
Velocity Gradients
Go
14 More Coaxial Cylinder Viscometers Calculators
Go
Coefficient of Permeability
(21)
Verified
Coefficient of permeability at any temperature t for standard value of coefficient of permeability
Go
Verified
Coefficient of permeability at temperature of permeameter experiment
Go
Verified
Coefficient of permeability from analogy of laminar flow (Hagen Poiseuille flow)
Go
Verified
Coefficient of Permeability when Specific or Intrinsic Permeability is Considered
Go
Verified
Coefficient of Permeability when Transmissibility is Considered
Go
Verified
Cross sectional area when coefficient of permeability at permeameter experiment is considered
Go
Verified
Discharge when Coefficient of Permeability at Permeameter Experiment is Considered
Go
Verified
Dynamic viscosity of fluid of laminar flow through conduit or Hagen Poiseuille flow
Go
Verified
Dynamic Viscosity when Specific or Intrinsic Permeability is Considered
Go
Verified
Equation for Specific or Intrinsic Permeability
Go
Verified
Equivalent permeability when transmissivity of aquifer is considered
Go
Verified
Hagen Poiseuille flow or mean particle size of porous medium laminar flow through conduit
Go
Verified
Kinematic Viscosity and Dynamic Viscosity Relation
Go
Verified
Kinematic Viscosity at 20 degree Celsius for standard value of coefficient of permeability
Go
Verified
Kinematic Viscosity for standard value of coefficient of permeability
Go
Verified
Kinematic Viscosity when Specific or Intrinsic Permeability is Considered
Go
Verified
Length when Coefficient of Permeability at Permeameter Experiment is Considered
Go
Verified
Specific or Intrinsic Permeability when Coefficient of Permeability is Considered
Go
Verified
Specific or Intrinsic Permeability when Dynamic Viscosity is Considered
Go
Verified
Standard value of coefficient of permeability
Go
Verified
Unit weight of fluid
Go
Cold Formed or Light Weighted Steel Structures
(15)
Created
Allowable Design Strength
Go
Created
Compressive Stress when Basic Design Stress restricted to 20000 psi
Go
Created
Compressive Stress when Flat Width Ratio is between 10 and 25
Go
Created
Depth of Stiffener Lip
Go
Created
Elastic Local Buckling Stress
Go
Created
Flat Width Ratio for Deflection Determination
Go
Created
Flat Width Ratio for Safe Load Determination
Go
Created
Flat Width Ratio given Depth of Stiffener Lip
Go
Created
Flat Width Ratio given Plate Slenderness Factor
Go
Created
Flat Width Ratio of Stiffened Element using Elastic Local Buckling Stress
Go
Created
Flat Width Ratio of Stiffened Element using Moment of Inertia
Go
Created
Minimum Allowable Moment of Inertia
Go
Created
Nominal Strength using Allowable Design Strength
Go
Created
Plate Slenderness Factor
Go
Created
Reduction Factor for Cold Form Strength Determination
Go
Column Moments
(1)
Verified
Eccentricity of Shear
Go
3 More Column Moments Calculators
Go
Columns
(4)
Created
Critical Buckling Stress when Slenderness Parameter is Greater than 1.5
Go
Created
Critical Buckling Stress when Slenderness Parameter is Less than 1.5
Go
Created
Maximum Load on Axially Loaded Members
Go
Created
Slenderness Parameter
Go
Combined Axial and Bending Loads
(2)
Verified
Distance from Extreme Fiber given Moment of Resistance and Moment of Inertia along with Stress
Go
Verified
Moment of Resistance given Young's Modulus, Moment of Inertia and Radius
Go
17 More Combined Axial and Bending Loads Calculators
Go
Combined Bending and Torsion Condition
(2)
Verified
Torsional Moment when Member is subjected to both Bending and Torsion
Go
Verified
Torsional Stress given Combined Bending and Torsional Stress
Go
4 More Combined Bending and Torsion Condition Calculators
Go
Compass Surveying
(11)
Created
Fore Bearing in Whole Circle Bearing System
Go
Created
Included Angle from Two Lines
Go
Created
Included Angle when Bearings are Measured in Opposite Side of Common Meridian
Go
Created
Included Angle when Bearings are Measured in Same Side of Different Meridian
Go
Created
Magnetic Bearing given True Bearing with East Declination
Go
Created
Magnetic Bearing given True Bearing with West Declination
Go
Created
Magnetic Declination to East
Go
Created
Magnetic Declination to West
Go
Created
Magnetic Declination to West for Compass Surveying
Go
Created
True Bearing if Declination is in East
Go
Created
True Bearing if Declination is in West
Go
Complementary Induced Stress
(1)
Verified
Angle of Oblique Plane using Shear Stress when Complementary Shear Stresses Induced
Go
5 More Complementary Induced Stress Calculators
Go
Compressibility of Aquifers
(1)
Verified
Discharge per Unit Width of Aquifer
Go
3 More Compressibility of Aquifers Calculators
Go
Compression
(3)
Verified
28-Day Concrete Compressive Strength
Go
Verified
28-Day Concrete Compressive Strength given Water Cement Ratio
Go
Verified
Water Cement Ratio given 28-Day Concrete Compressive Strength
Go
16 More Compression Calculators
Go
Compression Members
(5)
Created
Allowable Compressive Stress when Slenderness Ratio is Less than Cc
Go
Created
Allowable Compressive Stress when Slenderness Ration is Greater than Cc
Go
Created
Effective Length Factor
Go
Created
Safety Factor for Allowable Compressive Stress
Go
Created
Slenderness Ratio Used for Separation
Go
Computation of Uniform Flow
(5)
Verified
Bed Slope of Channel Section given Discharge
Go
Verified
Conveyance given Discharge
Go
Verified
Discharge given Conveyance
Go
Verified
Manning's Formula for Conveyance given Discharge
Go
Verified
Manning's Formula for Discharge given Conveyance
Go
14 More Computation of Uniform Flow Calculators
Go
Concentration of Solids
(3)
Verified
Concentration of Sludge in Return Line given RAS Pumping Rate from Aeration Tank
Go
Verified
Concentration of Sludge in Return Line given Wasting Rate from Return Line
Go
Verified
Concentration of Solids in Effluent given Wasting Rate from Return Line
Go
Confidence Limits
(6)
Verified
Confidence interval of variate
Go
Verified
Equation for confidence interval of variate
Go
Verified
Equation for Variate 'b' using Frequency Factor
Go
Verified
Probable Error
Go
Verified
Sample Size when Probable Error is Considered
Go
Verified
Variate 'b' given Probable Error
Go
2 More Confidence Limits Calculators
Go
Confined Groundwater Flow between Water Bodies
(7)
Verified
Aquifer thickness when discharge is considered
Go
Verified
Coefficient of Permeability when discharge is considered
Go
Verified
Discharge per unit width of aquifers
Go
Verified
Equation of Hydraulic Grade Line in Confined Groundwater Flow
Go
Verified
Length when Discharge per Unit Width of Aquifer is Considered
Go
Verified
Rate of movement through aquifer and confining bed
Go
Verified
Velocity Equation of Hydraulics
Go
Constant Thickness on Arch Dam
(2)
Verified
Constant K1 given Rotation due to Moment on Arch Dam
Go
Verified
Constant K5 given Deflection due to Moments on Arch Dam
Go
4 More Constant Thickness on Arch Dam Calculators
Go
Construction of S-Curve
(3)
Verified
Ordinates of unit hydrograph for S-Curve at certain time
Go
Verified
S Curve Addition
Go
Verified
S Curve at any time
Go
Construction Safety Management
(8)
Created
Injury Frequency Rate
Go
Created
Injury Frequency Rate given Injury Index
Go
Created
Injury Index
Go
Created
Injury Severity Rate
Go
Created
Number of Days Lost given Severity Rate
Go
Created
Number of Disabling Injuries given Frequency Rate
Go
Created
Number of Man-Hour Worked given Frequency Rate
Go
Created
Severity Rate given Injury Index
Go
Controlling Sewer-Water Flow
(7)
Verified
Area for Siphon Throat
Go
Verified
Coefficient of Discharge given Area for Siphon Throat
Go
Verified
Depth of Flow over Weir given Flow Diversion
Go
Verified
Discharge given Area for Siphon Throat
Go
Verified
Flow Diversion for Side Weir
Go
Verified
Head given Area for Siphon Throat
Go
Verified
Length of Weir given Flow Diversion
Go
Correction for Tension and Sag to Measured Length
(2)
Verified
Sag Correction of Unsupported Tape
Go
Verified
Tape Weight given Sag Correction of Unsupported Tape
Go
3 More Correction for Tension and Sag to Measured Length Calculators
Go
Critical Flow and its Computation
(2)
Verified
Critical Depth for Rectangular Channel
Go
Verified
Discharge per unit Width given Critical Depth for Rectangular Channel
Go
14 More Critical Flow and its Computation Calculators
Go
Critical Path Method
(4)
Created
Free Float used in CPM
Go
Created
Independent Float used in CPM
Go
Created
Interfering Float
Go
Created
Total Float in CPM
Go
6 More Critical Path Method Calculators
Go
Cross sectional area
(1)
Verified
Cross Section Area for Mass of Fluid Striking Plate
Go
3 More Cross sectional area Calculators
Go
Culverts on Subcritical Slopes
(4)
Verified
Entrance Loss Coefficient using formula for Head on Entrance measured from Bottom of Culvert
Go
Verified
Manning's Formula for Hydraulic Radius given Velocity of Flow in Culverts
Go
Verified
Normal Depth of Flow given Head on Entrance measured from Bottom of Culvert
Go
Verified
Velocity of Flow given Head on Entrance measured from Bottom of Culvert
Go
7 More Culverts on Subcritical Slopes Calculators
Go
Curve Number (CN)
(1)
Verified
Potential Maximum Retention given Curve Number
Go
2 More Curve Number (CN) Calculators
Go
Cylindrical Vessel Containing Liquid Rotating with its Axis Horizontal.
(3)
Verified
Pressure Intensity when Radial Distance is Zero
Go
Verified
Specific Weight of Liquid given Total Pressure Force on each end of Cylinder
Go
Verified
Total Pressure Force on Each End of Cylinder
Go
2 More Cylindrical Vessel Containing Liquid Rotating with its Axis Horizontal. Calculators
Go
Dams on Soft or Porous Foundations by Darcy’s law
(6)
Verified
Length of Conduit after using Area of Pipe in Discharge
Go
Verified
Number of Beds given discharge for Dams on Soft Foundations
Go
Verified
Saturation for Total Pressure per unit Area for Dams on Soft Foundations
Go
Verified
Specific gravity of water given Neutral stress per unit area for Dams on Soft Foundations
Go
Verified
Velocity given Length of Conduit after using Area of Pipe in Discharge
Go
Verified
Void Ratio given Total Pressure per unit Area for Dams on Soft Foundations
Go
12 More Dams on Soft or Porous Foundations by Darcy’s law Calculators
Go
Darcy – Weisbach Equation
(6)
Verified
Density of Fluid given Friction Factor
Go
Verified
Diameter of Pipe given Friction Factor
Go
Verified
Diameter of Pipe given Head Loss due to Frictional Resistance
Go
Verified
Dynamic Viscosity given Friction Factor
Go
Verified
Head Loss due to Frictional Resistance
Go
Verified
Total Required Power
Go
8 More Darcy – Weisbach Equation Calculators
Go
Darcy's Law
(3)
Verified
Apparent Velocity and Bulk Pore Velocity Relationship
Go
Verified
Apparent Velocity of Seepage given Reynolds Number of Value Unity
Go
Verified
Bulk Pore Velocity
Go
4 More Darcy's Law Calculators
Go
Dash-Pot Mechanism
(4)
Verified
Pressure Gradient given Rate of Flow
Go
Verified
Pressure Gradient given Velocity of Flow in Oil Tank
Go
Verified
Velocity of Flow in Oil Tank
Go
Verified
Vertical Upward Force on Piston given Piston Velocity
Go
8 More Dash-Pot Mechanism Calculators
Go
Deflection Due to Prestressing Force
(15)
Verified
Deflection Due to Prestressing for Parabolic Tendon
Go
Verified
Deflection Due to Prestressing for Singly Harped Tendon
Go
Verified
Deflection Due to Prestressing given Doubly Harped Tendon
Go
Verified
Flexural Rigidity given Deflection Due to Prestressing for doubly Harped Tendon
Go
Verified
Flexural Rigidity given Deflection Due to Prestressing for Parabolic Tendon
Go
Verified
Flexural Rigidity given Deflection Due to Prestressing for Singly Harped Tendon
Go
Verified
Length of Span given Deflection Due to Prestressing for Parabolic Tendon
Go
Verified
Length of Span given Deflection Due to Prestressing for Singly Harped Tendon
Go
Verified
Moment of Inertia for Deflection due to prestressing for parabolic tendon
Go
Verified
Moment of Inertia for deflection due to prestressing of singly harped tendon
Go
Verified
Uplift Thrust given Deflection Due to Prestressing for doubly Harped Tendon
Go
Verified
Uplift Thrust given Deflection Due to Prestressing for Singly Harped Tendon
Go
Verified
Uplift Thrust when Deflection Due to Prestressing for Parabolic Tendon
Go
Verified
Young's Modulus given Deflection Due to Prestressing for Parabolic Tendon
Go
Verified
Young's Modulus given Deflection Due to Prestressing for Singly Harped Tendon
Go
4 More Deflection Due to Prestressing Force Calculators
Go
Deflection on Arch Dams
(2)
Verified
Deflection due to Shear on Arch Dam
Go
Verified
Deflection due to Thrust on Arch Dam
Go
1 More Deflection on Arch Dams Calculators
Go
Density Currents in Harbors
(1)
Verified
Water Depth given Velocity in Dry Bed Curve
Go
22 More Density Currents in Harbors Calculators
Go
Density of Sediment Deposits
(7)
Verified
Average Unit Weight of Deposit during period of T years
Go
Verified
Equation for Weighted Value of Sand, Silt and Clay
Go
Verified
Initial Unit Weight given Average Unit Weight of Deposit
Go
Verified
Percentage of Clay given Unit Weight of Deposit
Go
Verified
Percentage of Sand given Unit Weight of Deposit
Go
Verified
Percentage of Silt for Unit Weight of Deposits
Go
Verified
Weighted Value given Average Unit Weight of Deposit
Go
1 More Density of Sediment Deposits Calculators
Go
Description of the Flow Pattern
(2)
Verified
Component of Velocity in X-Direction using Slope of Streamline
Go
Verified
Component of Velocity in Y-Direction given Slope of Streamline
Go
1 More Description of the Flow Pattern Calculators
Go
Design of a complete mix activated sludge reactor
(2)
Verified
Recirculation Ratio
Go
Verified
Sludge Concentration using Wasting Rate from Return Line when Solid Concentration in Effluent is Low
Go
Design of Fillets
(12)
Verified
Aircraft Datum Length given Length of each Wedge-shaped End of Fillet
Go
Verified
Distance along Straight Taxiway Center line given Length of each End of Fillet
Go
Verified
Length of each Wedge-Shaped end of Fillet
Go
Verified
Maximum Deviation permissible without Filleting
Go
Verified
Maximum value of Deviation of main Undercarriage given Radius of Fillet
Go
Verified
Minimum Safety Margin given Maximum Deviation permissible without Filleting
Go
Verified
Minimum Safety Margin given Radius of Fillet
Go
Verified
Radius of Fillet
Go
Verified
Radius of Taxiway Centerline given Radius of Fillet
Go
Verified
Taxiway Width given Maximum Deviation permissible without Filleting
Go
Verified
Track of Main Undercarriage given Maximum Deviation permissible without Filleting
Go
Verified
Track of main Undercarriage given Radius of Fillet
Go
Design of Stiffeners
(3)
Verified
Computed Force given Cross sectional Area of Column Web Stiffeners
Go
Verified
Cross sectional area of Column Web Stiffeners
Go
Verified
Stiffener Yield Stress given Cross Sectional Area of Column Web Stiffeners
Go
13 More Design of Stiffeners Calculators
Go
Design of Two Way Slab System
(2)
Verified
Concrete Shear Strength at Critical Sections
Go
Verified
Maximum Slab thickness
Go
1 More Design of Two Way Slab System Calculators
Go
Determination of Evapotranspiration
(3)
Verified
Consumptive use of water for large areas
Go
Verified
Equation for constant depending upon latitude in net radiation of evaporable water equation
Go
Verified
Equation for Parameter Including Wind Velocity and Saturation Deficit
Go
Determination of n and S of Nash's Model
(4)
Verified
First Moment of DRH about time origin divided by total direct runoff
Go
Verified
First moment of ERH about time origin divided by total effective rainfall
Go
Verified
First moment of ERH given second moment of DRH
Go
Verified
First moment of instantaneous unit hydrograph, IUH
Go
1 More Determination of n and S of Nash's Model Calculators
Go
Determining storm water flow
(3)
Verified
Average Rainfall Rate given Stormwater
Go
Verified
Coefficient of Runoff given Stormwater
Go
Verified
Drainage Area given Stormwater
Go
1 More Determining storm water flow Calculators
Go
Development Length Requirements
(4)
Verified
Bar Steel Yield Strength given Basic Development Length
Go
Verified
Basic Development Length for 14mm Diameter Bars
Go
Verified
Basic Development Length for 18mm Diameter Bars
Go
Verified
Basic Development Length for Bars and Wire in Tension
Go
4 More Development Length Requirements Calculators
Go
Dhruv Narayan Et Al's Equation
(2)
Verified
Dhruv Narayan Et Al's Equation for Annual Runoff Volume
Go
Verified
Dhruv Narayan Et Al's Equation for Annual Sediment Yield Rate from Catchment Area
Go
Discharge
(2)
Verified
Discharge Considering Approach Velocity
Go
Verified
Discharge over Weir without Considering Velocity
Go
5 More Discharge Calculators
Go
Disposing of storm water
(4)
Verified
Area of Opening given Inlet Capacity for Flow Depth more than 1ft 5in
Go
Verified
Depth of Flow at Inlet given Inlet Capacity for Flow Depth up to 4.8in
Go
Verified
Depth of Flow given Inlet Capacity for Flow Depth more than 1ft 5in
Go
Verified
Inlet Capacity for Flow Depth more than 1ft 5in
Go
6 More Disposing of storm water Calculators
Go
Distance-Drawdown Analysis
(10)
Verified
Drawdown across one log cycle from distance drawdown graphs given transmissivity
Go
Verified
Drawdown across One Log Cycle given Transmissivity for Inconsistent Units
Go
Verified
Pumping rate from distance drawdown graphs
Go
Verified
Pumping Rate given Transmissivity for Inconsistent Units from Distance-Drawdown Graphs
Go
Verified
Storage coefficient for inconsistent units from distance drawdown graphs
Go
Verified
Storage coefficient from distance drawdown graphs
Go
Verified
Time at which drawdowns are measured for storage coefficient
Go
Verified
Transmissivity for inconsistent units from distance drawdown graphs
Go
Verified
Transmissivity from distance drawdown graphs
Go
Verified
Transmissivity given storage coefficient from distance drawdown
Go
Doubly Reinforced Rectangular Sections
(1)
Verified
Cross-Sectional Area of Compressive Reinforcing
Go
2 More Doubly Reinforced Rectangular Sections Calculators
Go
Doubly Reinforced Rectangular Sections
(2)
Created
Bending Moment Capacity of Rectangular Beam
Go
Created
Depth of Equivalent Rectangular Compressive Stress Distribution
Go
Doubly Reinforced Rectangular Sections
(9)
Created
Force Acting on Compressive Steel
Go
Created
Force Acting on Tensile Steel
Go
Verified
Moment Resistance in Compression
Go
Created
Moment Resistance of Tensile Steel given Area
Go
Verified
Moment Resisting Capacity of Compressive Steel given Stress
Go
Verified
Stress in Extreme Compression Surface given Moment Resistance
Go
Created
Stress in Tensile Steel to Stress in Extreme Compression Surface Ratio
Go
Created
Total Compression on Concrete
Go
Created
Total Compressive force on Beam Cross Section
Go
Drill String Buckling
(5)
Verified
Cross Section Area of Column for Critical Buckling Load
Go
Verified
Flow Velocity given Reynolds Number in Shorter Length of Pipe
Go
Verified
Kinematic Viscosity of Fluid given Reynolds Number in Shorter Length of Pipe
Go
Verified
Pipe Diameter given Reynolds Number in Shorter Length of Pipe
Go
Verified
Reynolds Number in Shorter Length of Pipe
Go
2 More Drill String Buckling Calculators
Go
Dynamics of Ocean Currents
(9)
Verified
Angular Velocity given Pressure Gradient Normal to Current
Go
Verified
Coriolis Acceleration
Go
Verified
Current Velocity given Coriolis Acceleration
Go
Verified
Current Velocity given Pressure Gradient Normal to Current
Go
Verified
Current Velocity given Radius of Curvature
Go
Verified
Latitude given Coriolis Acceleration
Go
Verified
Latitude given Pressure Gradient Normal to Current
Go
Verified
Pressure Gradient Normal to Current
Go
Verified
Radius of Curvature given Current Velocity
Go
Eckman Wind Drift
(10)
Verified
Angle between Wind and Current Direction
Go
Verified
Depth given Angle between Wind and Current Direction
Go
Verified
Depth given Volume Flow rate per unit of Ocean Width
Go
Verified
Depth of Frictional Influence by Eckman
Go
Verified
Latitude given Depth of Frictional Influence by Eckman
Go
Verified
Velocity at Surface given Velocity Component along Horizontal x Axis
Go
Verified
Velocity Component along Horizontal x Axis
Go
Verified
Vertical Coordinate from Ocean Surface given Angle between Wind and Current Direction
Go
Verified
Vertical Eddy Viscosity Coefficient given Depth of Frictional Influence by Eckman
Go
Verified
Volume Flow Rates per unit of Ocean Width
Go
5 More Eckman Wind Drift Calculators
Go
Economics of Project Management
(9)
Created
Contribution per Unit
Go
Created
Fixed Cost
Go
Created
Profit for Total Expenses
Go
Created
Selling Price
Go
Created
Total Cost
Go
Created
Total Cost given Profit
Go
Created
Total Revenue
Go
Created
Total Variable Cost
Go
Created
Volume of Output
Go
Eddy Loss
(5)
Verified
Eddy loss for abrupt contraction channel transition
Go
Verified
Eddy loss for abrupt expansion channel transition
Go
Verified
Eddy loss for gradual contraction channel transition
Go
Verified
Eddy loss for gradual expansion channel transition
Go
Verified
Eddy loss for non uniform flow
Go
EDM Corrections
(11)
Created
Barometric Pressure given Group Refractive Index
Go
Created
Corrected Slope Distance for Refractive Index
Go
Created
Essen and Froome Formula for Group Refractive Index
Go
Created
Group Refractive Index at Standard Conditions
Go
Created
Group Refractive Index if Temperature and Humidity are different from Standard Values
Go
Created
IUCG Formula for Refractive Index
Go
Created
Overall Standard Error
Go
Created
Partial Pressure of Water Vapour when Temperature Effects are Considered
Go
Created
Temperature Difference given Partial Pressure
Go
Created
Wave Velocity in Medium
Go
Created
Wave Velocity in Vacuum
Go
EDM Lines
(4)
Created
Reduced Distance
Go
Created
Spheroidal Distance
Go
Created
Spheroidal Distance for Geodimeters
Go
Created
Spheroidal Distance for Tellurometers
Go
Effect of Freshwater Inflow
(5)
Verified
King's Dimensionless Variable
Go
Verified
Ocean Tide Amplitude using King's Dimensionless Variable
Go
Verified
River or Freshwater Inflow to Bay using King's Dimensionless Variable
Go
Verified
Surface Area of Bay or Basin using King's Dimensionless Variable
Go
Verified
Tidal Period using King's Dimensionless Variable
Go
Efficiency of Filter
(8)
Verified
Efficiency of First Filter given BOD Loading for Second Filter
Go
Verified
Efficiency of First Filter Stage
Go
Verified
Efficiency of First Filter Stage given Overall Efficiency
Go
Verified
Efficiency of First Filter Stage using Efficiency of Second Filter Stage
Go
Verified
Efficiency of Second Filter Stage
Go
Verified
Efficiency of Second Filter Stage given Overall Efficiency
Go
Verified
Overall Efficiency given Efficiency of First and Second Filter Stage
Go
Verified
Overall Efficiency of Two Stage Trickling Filter
Go
Efficiency of turbine
(1)
Verified
Efficiency of turbine and generator given Power obtained from water flow in Kilowatt
Go
3 More Efficiency of turbine Calculators
Go
Effluent Substrate Concentration
(4)
Verified
Effluent Flow Rate given Wasting Rate from Return Line
Go
Verified
Effluent Substrate Concentration given Net Waste Activated Sludge
Go
Verified
Effluent Substrate Concentration given Theoretical Oxygen Requirement
Go
Verified
Effluent Substrate Concentration given Volume of Reactor
Go
Elastic Modulus of Rock
(2)
Verified
Elastic Modulus of Rock given Rotation due to Shear on Arch Dam
Go
Verified
Elastic Modulus of Rock given Rotation due to Twist on Arch Dam
Go
4 More Elastic Modulus of Rock Calculators
Go
Elongation due to Self weight
(6)
Verified
Elongation due to Self Weight in Prismatic Bar
Go
Verified
Elongation due to Self Weight in Prismatic Bar using Applied Load
Go
Verified
Elongation of Truncated Conical Rod due to Self Weight
Go
Verified
Length of Bar using Elongation due to Self Weight in Prismatic bar
Go
Verified
Length of Bar using its Uniform Strength
Go
Verified
Modulus of Elasticity of Rod using Extension of Truncated Conical Rod due to Self Weight
Go
5 More Elongation due to Self weight Calculators
Go
Elongation of Tapering Bar due to Self Weight
(4)
Verified
Elongation of Conical Bar due to Self Weight with known Cross-sectional area
Go
Verified
Load on Prismatic Bar with known Elongation due to Self Weight
Go
Verified
Modulus of Elasticity of Prismatic Bar with known Elongation due to Self Weight
Go
Verified
Self Weight of Prismatic Bar with known Elongation
Go
9 More Elongation of Tapering Bar due to Self Weight Calculators
Go
Empirical Evaporation Equations
(2)
Verified
Meyers formula (1915)
Go
Verified
Rohwers formula (1931)
Go
1 More Empirical Evaporation Equations Calculators
Go
Endogenous Decay Coefficient
(2)
Verified
Endogenous Decay Coefficient given Observed Cell Yield
Go
Verified
Endogenous Decay Constant given Volume of Reactor
Go
Energy Flux Method
(1)
Verified
Stable Wave Height
Go
12 More Energy Flux Method Calculators
Go
Entrance and Exit Submerged
(4)
Verified
Entrance Loss Coefficient given Velocity of Flow Fields
Go
Verified
Head Loss in Flow
Go
Verified
Hydraulic Radius of Culvert given Velocity of Flow Fields
Go
Verified
Velocity of Flow Fields
Go
1 More Entrance and Exit Submerged Calculators
Go
Estimating Marine and Coastal Winds
(10)
Verified
Coefficient of Drag for Winds Influenced by Stability Effects
Go
Verified
Coefficient of Drag for Winds Influenced by Stability Effects given Von Karman Constant
Go
Verified
Friction Velocity given Height of Boundary Layer in Non-Equatorial Regions
Go
Verified
Friction Velocity of Wind in Neutral Stratification as Function of Geostrophic Wind Speed
Go
Verified
Geostrophic Wind Speed
Go
Verified
Geostrophic Wind Speed given Friction Velocity in Neutral Stratification
Go
Verified
Gradient of Atmospheric Pressure Orthogonal to Isobars
Go
Verified
Gradient of Atmospheric Pressure Orthogonal to Isobars given Gradient Wind Speed
Go
Verified
Height of Boundary layer in Non-Equatorial Regions
Go
Verified
Wind Speed at Height above Surface in form of near Surface Wind Profile
Go
14 More Estimating Marine and Coastal Winds Calculators
Go
Estimation of Flood
(7)
Verified
Baird and McIllwraith formula for maximum flood discharge
Go
Verified
Catchment area when maximum flood discharge in Ryve's formula
Go
Verified
Catchment area when maximum flood discharge is considered in Dickens formula
Go
Verified
Fuller's formula for Maximum Flood Discharge
Go
Verified
Jarvis formula for peak discharge
Go
Verified
Kirpich Equation
Go
Verified
Ryves Formula for maximum flood discharge
Go
1 More Estimation of Flood Calculators
Go
Evaluation of Average Strain and Neutral Axis Depth
(21)
Verified
Area of non prestressed reinforcement given tension force
Go
Verified
Area of non-prestressing reinforcement given average strain
Go
Verified
Area of prestressing steel given tension force
Go
Verified
Average Strain under Tension
Go
Verified
Compression force for prestressed section
Go
Verified
Couple Force of Cross Section
Go
Verified
Depth of neutral axis given couple force of cross section
Go
Verified
Distance from compression face to crack width given average strain
Go
Verified
Effective Depth of Longitudinal Reinforcement Given Average Strain
Go
Verified
Height of crack width at soffit given average strain
Go
Verified
Modulus of elasticity of concrete given couple force of cross-section
Go
Verified
Modulus of elasticity of non prestressed steel given tension force
Go
Verified
Modulus of Elasticity of Non-Prestressed given Average Strain under Tension
Go
Verified
Modulus of elasticity of prestressed steel given compression force
Go
Verified
Strain at selected Level given average strain under tension
Go
Verified
Strain given couple force of cross section
Go
Verified
Strain in longitudinal reinforcement given tension force
Go
Verified
Strain in prestressed steel given tension force
Go
Verified
Tension force for prestressed section
Go
Verified
Width of rectangular zone given average strain
Go
Verified
Width of section given couple force of cross section
Go
Evapotranspiration
(7)
Verified
Actual Evapotranspiration
Go
Verified
Actual Evapotranspiration given Aridity Index
Go
Verified
Aridity Index
Go
Verified
Change in Moisture Storage
Go
Verified
Precipitation given Change in Moisture Storage
Go
Verified
Runoff given Change in Moisture Storage
Go
Verified
Subsurface Outflow given Change in Moisture Storage
Go
Flanged Sections
(4)
Verified
Depth when Neutral Axis is in Flange
Go
Verified
Distance when Neutral Axis Lies in Flange
Go
Verified
Maximum Ultimate Moment when Neutral Axis Lies in Web
Go
Verified
Value of Omega if Neutral Axis is in Flange
Go
Flat Plate Construction
(6)
Verified
Clear Span in Direction Moments given Total Static Design Moment
Go
Verified
Concrete Column Elasticity Modulus using Flexural Stiffness
Go
Verified
Moment of Inertia of Centroidal Axis given Flexural Stiffness
Go
Verified
Strip Width given Total Static Design Moment
Go
Verified
Total Static Design Moment in Strip
Go
Verified
Uniform Design Load Per Unit of Slab Area given Total Static Design Moment
Go
Flat Plate Normal to the Jet
(3)
Verified
Area of Cross Section of Jet given Mass of Fluid
Go
Verified
Mass Flow Rate of Fluid Striking Plate
Go
Verified
Velocity given Mass of Fluid
Go
3 More Flat Plate Normal to the Jet Calculators
Go
Flat Plate Normal to the Jet
(1)
Verified
Efficiency of Wheel
Go
5 More Flat Plate Normal to the Jet Calculators
Go
Flood Routing
(13)
Verified
Average Inflow denoting at beginning and end of Time Interval
Go
Verified
Average Inflow given Change in Storage
Go
Verified
Average Outflow Denoting Beginning and End of Time Interval
Go
Verified
Average Outflow in Time given Change in Storage
Go
Verified
Change in Storage Denoting Beginning and End of Time Interval
Go
Verified
Inflow at Beginning of Time Interval given Average Inflow
Go
Verified
Inflow at End of Time Interval given Average Inflow
Go
Verified
Outflow at Beginning of Time Interval given Average Inflow
Go
Verified
Outflow at End of Time Interval given Average Inflow
Go
Verified
Outflow Rate given Rate of Change of Storage
Go
Verified
Storage at Beginning of Time Interval
Go
Verified
Storage at end of Time Interval
Go
Verified
Storage at end of time interval of reservoir
Go
3 More Flood Routing Calculators
Go
Flow Over a Rectangular Sharp-Crested Weir or Notch
(3)
Verified
Coefficient of Discharge given Discharge if Velocity Considered
Go
Verified
Coefficient of Discharge given Discharge if Velocity not Considered
Go
Verified
Coefficient of Discharge given Discharge over Weir without Considering Velocity
Go
14 More Flow Over a Rectangular Sharp-Crested Weir or Notch Calculators
Go
Flow velocity in straight sewers
(1)
Verified
Area given Water Flow Equation
Go
7 More Flow velocity in straight sewers Calculators
Go
Flow-Duration Curve
(3)
Verified
Number of Data Points given Percentage Probability of Flow Magnitude
Go
Verified
Order Number of Discharge given Percentage Probability of Flow Magnitude
Go
Verified
Percentage probability of flow magnitude
Go
Fluid Particle Displacement
(8)
Verified
Horizontal Fluid Particle Displacements
Go
Verified
Particle Velocity given Change in Pressure
Go
Verified
Phase Angle for Horizontal Fluid Particle Displacements
Go
Verified
Phase Angle for Vertical Fluid Particle Displacements
Go
Verified
Simplified Horizontal Fluid Particle Displacements
Go
Verified
Simplified Vertical Fluid Particle Displacements
Go
Verified
Vertical Fluid Particle Displacements
Go
Verified
Wave Height given Particle Velocity
Go
Flushing/Circulation Processes and Vessel Interactions
(9)
Verified
Channel Depth given Vessel Blockage Ratio
Go
Verified
Channel Width given Vessel Blockage Ratio
Go
Verified
Continuity and Energy Equations given Froude Number, Drawdown and Vessel Blockage Ratio
Go
Verified
Individual Wave Celerity created by Moving Vessel
Go
Verified
Return Flow Velocity
Go
Verified
Vessel Blockage Ratio
Go
Verified
Vessel Speed given Individual Wave Celerity created by Moving Vessel
Go
Verified
Vessel Speed given Return Flow Velocity
Go
Verified
Vessel's midsection wetted cross-sectional area given Vessel Blockage Ratio
Go
8 More Flushing/Circulation Processes and Vessel Interactions Calculators
Go
Footing
(1)
Verified
Tensile Bending Stress at Bottom when Footing is Deep
Go
2 More Footing Calculators
Go
For an Open Rectangular Basin
(4)
Verified
Length of Basin for Open Rectangular Basin
Go
Verified
Natural free Oscillating Period of Basin for Open Rectangular Basin
Go
Verified
Number of nodes along axis of Basin for Open Rectangular Basin
Go
Verified
Water Depth for Open Rectangular Basin
Go
Forces Acting on Fluid in Motion
(1)
Verified
Gravity Force given Sum of Total Forces influencing Motion of Fluid
Go
8 More Forces Acting on Fluid in Motion Calculators
Go
Forces Driving Ocean Currents
(12)
Verified
Coriolis Frequency
Go
Verified
Coriolis Frequency given Horizontal Component of Coriolis Acceleration
Go
Verified
Drag Coefficient
Go
Verified
Drag Coefficient given Wind Stress
Go
Verified
Horizontal Component of Coriolis Acceleration
Go
Verified
Horizontal Speed across Earth's Surface given Coriolis Frequency
Go
Verified
Horizontal Speed across Earth's Surface given Horizontal Component of Coriolis Acceleration
Go
Verified
Latitude given Magnitude of Horizontal Component of Coriolis Acceleration
Go
Verified
Magnitude of Horizontal Component of Coriolis Acceleration
Go
Verified
Wind Speed at Height 10 m for Drag Coefficient
Go
Verified
Wind Speed at Height 10 m given Wind Stress
Go
Verified
Wind Stress
Go
2 More Forces Driving Ocean Currents Calculators
Go
Form Drag
(1)
Verified
Vessel Draft given Form Drag of Vessel
Go
6 More Form Drag Calculators
Go
Free Oscillation Period
(3)
Verified
Natural Free Oscillation Period for Average Horizontal Velocity at Node
Go
Verified
Natural Free Oscillation Period for Open Basin
Go
Verified
Natural Free Oscillation period given Maximum Horizontal Particle Excursion at Node
Go
3 More Free Oscillation Period Calculators
Go
Friction Factor
(3)
Verified
Friction Factor
Go
Verified
Friction Factor given Reynolds Number
Go
Verified
Friction Factor given Shear Velocity
Go
2 More Friction Factor Calculators
Go
Friction Loss
(9)
Created
Coefficient of Friction given Px
Go
Created
Prestress Force at Distance X by Taylor Series Expansion
Go
Created
Prestress Force at Stressing End
Go
Created
Prestress Force at Stressing End using Taylor Series Expansion
Go
Created
Prestressing Force at Distance X
Go
Created
Prestressing Force at Distance x from Stretching End for Known Resultant
Go
Created
Resultant of Vertical Reaction from Concrete on Tendon
Go
Created
Subtended Angle given Resultant Reaction
Go
Created
Wobble Coefficient k given Px
Go
General Geometric Properties
(4)
Created
Area of Concrete Section when Transformed Area is Calculated
Go
Created
Area of Prestressing Steel given Transformed Area
Go
Created
Transformed Area of Prestressed Member
Go
Created
Transformed Area of Prestressed Member given Gross Area of Member
Go
General Principles
(12)
Created
Compressive Stress due to External Moment
Go
Created
Cross Sectional Area given Compressive Stress
Go
Created
External Moment with Known Compressive Stress
Go
Created
Length of Span given Uniform Load
Go
Created
Prestressing Force given Compressive Stress
Go
Created
Prestressing Force given Uniform Load
Go
Created
Resulting Stress due to Moment and Prestress and Eccentric Strands
Go
Created
Resulting Stress due to Moment and Prestressing Force
Go
Created
Sag of Parabola given Uniform Load
Go
Created
Stress due to Prestress Moment
Go
Created
Uniform Compressive Stress due to Prestress
Go
Created
Upward Uniform Load using Load Balancing Method
Go
Generation-Distribution Models
(5)
Verified
Air Trips between i and j
Go
Verified
Country Pair Relation Index given Air Traffic between Stations i and j
Go
Verified
Factor to adjust for Quantum Effects given Air Trips between i and j
Go
Verified
Population at i given Air Trips between i and j
Go
Verified
Time in Years given Air Trips between i and j
Go
3 More Generation-Distribution Models Calculators
Go
Geometrics Properties
(4)
Created
Area of Concrete about Non-Prestressed Reinforcements and Transformed Section
Go
Created
Area of Non-Prestressed Reinforcement in Partially Prestressed Members
Go
Created
Area of Prestressing Tendons about Non-Prestressed Reinforcements and Transformed Section
Go
Created
Transformed Area of Partially Prestressed Members
Go
Girder Design Procedures
(9)
Created
Allowable Bending Stress in Compression Flange
Go
Created
Allowable Shear Stress with Tension Field Action
Go
Created
Allowable Shear Stress without Tension Field Action
Go
Created
Area of Flange given Plate Girder Stress Reduction Factor
Go
Created
Area of Web given Plate Girder Stress Reduction Factor
Go
Created
Depth to Thickness Ratio of Girder with Transverse Stiffeners
Go
Created
Hybrid Girder Factor
Go
Created
Maximum depth to thickness Ratio for Unstiffened Web
Go
Created
Plate Girder Stress Reduction Factor
Go
Goodrich Method
(4)
Verified
Inflow at Beginning of Time Interval
Go
Verified
Inflow at End of Time Interval
Go
Verified
Outflow at Beginning of Time Interval
Go
Verified
Outflow at End of Time Interval
Go
Gradients
(1)
Verified
Height for Parabolic Shape Camber
Go
11 More Gradients Calculators
Go
Gravity Dam
(2)
Verified
Total Vertical Force for Vertical Normal Stress at Upstream Face
Go
Verified
Total Vertical Force given Vertical Normal Stress at Downstream Face
Go
6 More Gravity Dam Calculators
Go
Gravity Retaining Wall
(1)
Verified
Pressure P1 when Resultant is at Middle Third Edge
Go
6 More Gravity Retaining Wall Calculators
Go
Groundwater Hydrology
(2)
Verified
Kinematic Viscosity of Water given Reynolds Number of Value Unity
Go
Verified
Representative Particle Size given Reynolds Number of Value Unity
Go
5 More Groundwater Hydrology Calculators
Go
Groundwater Level Fluctuation and Specific Yield Method
(21)
Verified
Base flow when Possible Recharge is Considered
Go
Verified
Catchment Area usually Watershed Area when Possible Recharge is considered
Go
Verified
Equation for Base Flow into Stream from Area
Go
Verified
Equation for Gross Recharge due to Rainfall and other Sources
Go
Verified
Equation for Gross Water Draft
Go
Verified
Equation for Net Ground Water Flow into Area across Boundary
Go
Verified
Equation for Recharge from Irrigation in Area
Go
Verified
Equation for Recharge from Rainfall
Go
Verified
Equation for Recharge from Stream into Ground water Body
Go
Verified
Equation for Recharge from Tanks and Ponds
Go
Verified
Equation for Recharge from Water Conservation Structures
Go
Verified
Equation for Recharge when Gross Water Draft is considered
Go
Verified
Equation for Specific Yield
Go
Verified
Equation for Water Level Fluctuation
Go
Verified
Equation for Watershed Area about Specific Yield and Water Level Fluctuation
Go
Verified
Net Ground Water Flow given Possible Recharge
Go
Verified
Possible Recharge given Gross Recharge due to Rainfall
Go
Verified
Possible Recharge given other Recharge Factors
Go
Verified
Recharge from Stream into Ground water Body given Possible Recharge
Go
Verified
Specific Yield when Possible Recharge and Gross Water Draft is considered
Go
Verified
Water Level Fluctuation when Possible Recharge and Gross Water Draft is considered
Go
Gumbel's Method
(14)
Verified
Frequency Factor as applicable to Infinite Sample Size
Go
Verified
Frequency Factor given Variate 'x' with respect to Return Period
Go
Verified
Frequency Factor in Gumbel's Equation for Practical Use
Go
Verified
General Equation of Hydrologic Frequency Analysis
Go
Verified
Gumbel's Variate 'x' with Recurrence Interval for Practical Use
Go
Verified
Mean of variate in flood frequency studies
Go
Verified
Mean Variate given Variate 'x' with Recurrence Interval for Practical Use
Go
Verified
Reduced Mean when Frequency Factor and Standard Deviation are considered
Go
Verified
Reduced Standard Deviation when Variate and Reduced Mean is considered
Go
Verified
Reduced Variate when Frequency Factor and Standard Deviation are considered
Go
Verified
Reduced Variate with respect to Return Period
Go
Verified
Reduced Variate with respect to Return Period when Frequency Factor is considered
Go
Verified
Reduced variate 'Y' for given return period
Go
Verified
Reduced Variate 'Y' in Gumbel's Method
Go
Hagen–Poiseuille Equation
(5)
Verified
Diameter of Pipe given Head Loss over Length of Pipe
Go
Verified
Discharge given Pressure Drop over Length of Pipe
Go
Verified
Length of Pipe given Head Loss over Length of Pipe with Discharge
Go
Verified
Length of Pipe given Pressure Drop over Length of Pipe with Discharge
Go
Verified
Pressure Drop over Length of Pipe given Discharge
Go
15 More Hagen–Poiseuille Equation Calculators
Go
Harbor Hydrodynamics
(16)
Verified
Coefficient for Wave Transmission by Flow over Structure
Go
Verified
Coefficient for Wave Transmission through Structure given Combined Transmission Coefficient
Go
Verified
Combined Wave Transmission Coefficient
Go
Verified
Dimensionless coefficient in Seelig equation for wave transmission coefficient
Go
Verified
Dimensionless coefficient in Seelig equation in wave transmission coefficient
Go
Verified
Freeboard for given Wave Transmission Coefficient
Go
Verified
Horizontal Ordinate given Water Surface Amplitude
Go
Verified
Incident Wave Height given Surf Similarity Number or Iribarren Number
Go
Verified
Incident Wave Height given Water Surface Amplitude
Go
Verified
Incident Wave Length given Water Surface Amplitude
Go
Verified
Reflected Wave Period given Water Surface Amplitude
Go
Verified
Surf Similarity Number or Iribarren Number
Go
Verified
Time Elapsed given Water Surface Amplitude
Go
Verified
Water Surface Amplitude
Go
Verified
Wave Runup above Mean Water Level for given Wave Transmission Coefficient
Go
Verified
Wave Transmission Coefficient
Go
Harbor Oscillations
(11)
Verified
Average Horizontal Velocity at Node
Go
Verified
Maximum Horizontal Particle Excursion at Node
Go
Verified
Maximum Horizontal Velocity at Node
Go
Verified
Standing Wave Height for Average Horizontal Velocity at Node
Go
Verified
Standing Wave Height given Maximum Horizontal Particle Excursion at Node
Go
Verified
Standing Wave Height given Maximum Horizontal Velocity at Node
Go
Verified
Water Depth for given Period for Fundamental Mode
Go
Verified
Water Depth given Average Horizontal Velocity at Node
Go
Verified
Water Depth given Maximum Horizontal Particle Excursion at Node
Go
Verified
Water Depth given Maximum Horizontal Velocity at Node
Go
Verified
Wave Length for Average Horizontal Velocity at Node
Go
11 More Harbor Oscillations Calculators
Go
Harmonic Analysis and Prediction of Tides
(7)
Verified
Form Number
Go
Verified
Lunar-Solar Constituent given Form Number
Go
Verified
Principal Lunar Diurnal Constituent given Form Number
Go
Verified
Principal Lunar Semi-Diurnal Constituent given Form Number
Go
Verified
Principal Solar Semi-Diurnal Constituent given Form Number
Go
Verified
Radian Frequencies for Prediction of Tides
Go
Verified
Time period of n'th contribution of tide prediction given radian frequencies
Go
Hoop Stress due to Temperature Fall
(1)
Verified
Hoop Stress due to Temperature Fall given Strain
Go
5 More Hoop Stress due to Temperature Fall Calculators
Go
Horizontal and Vertical Semi-axis of ellipse
(9)
Verified
Major Horizontal Semi Axis for Deep Water Condition
Go
Verified
Minor Vertical Semi Axis for Shallow Water Condition
Go
Verified
Minor Vertical Semi-Axis for Deep Water Condition
Go
Verified
Sea Bed Given Minor Vertical Semi-Axis for Shallow Water Condition
Go
Verified
Water Depth Given Minor Vertical Semi-Axis for Shallow Water Condition
Go
Verified
Wave Height for Major Horizontal Semi-Axis Deep Water Condition
Go
Verified
Wave Height for Minor Vertical Semi-Axis Deep Water Condition
Go
Verified
Wave Height Given Minor Vertical Semi-Axis for Shallow Water Condition
Go
Verified
Wavelength for Major Horizontal Semi-Axis for Shallow Water Condition
Go
3 More Horizontal and Vertical Semi-axis of ellipse Calculators
Go
Horton's Equation (1933)
(1)
Verified
Infiltration rate by Horton's equation
Go
Hydraulic Depth
(2)
Verified
Hydraulic Depth
Go
Verified
Wetted Area given Hydraulic Mean Depth
Go
4 More Hydraulic Depth Calculators
Go
Hydraulic Head
(1)
Verified
Head over Crest for given Discharge without Velocity
Go
7 More Hydraulic Head Calculators
Go
Hydraulic Jump in Rectangular Channel
(3)
Verified
Conjugate Depth y1 given Discharge per Unit Width of Channel
Go
Verified
Conjugate Depth y2 given Discharge per Unit Width of Channel
Go
Verified
Conjugate Depth y2 given Froude Number Fr1
Go
8 More Hydraulic Jump in Rectangular Channel Calculators
Go
Hydraulic Retention Time
(1)
Verified
Hydraulic Retention Time given Food to Microorganism Ratio
Go
2 More Hydraulic Retention Time Calculators
Go
Hydroelectric Power Generation
(1)
Verified
Flow Rate for Power obtained from Water Flow in Horsepower
Go
5 More Hydroelectric Power Generation Calculators
Go
Hydrographs
(12)
Verified
Discharge at initial time
Go
Verified
Discharge at Initial Time in Alternative form of Exponential Decay
Go
Verified
Discharge given Storage
Go
Verified
Discharge in Alternative form of Exponential Decay
Go
Verified
Discharge with respect to Recession Constant
Go
Verified
Drainage Area given Time Interval from peak in straight line method of baseflow separation
Go
Verified
Recession Constant
Go
Verified
Recession Constant for Base Flow
Go
Verified
Recession Constant for Interflow
Go
Verified
Recession Constant for Surface Storage
Go
Verified
Storage Remaining at any Time
Go
Verified
Time Interval from Peak in Straight Line method of Baseflow Separation
Go
Hydrologic Channel Routing
(7)
Verified
Equation for Linear Storage
Go
Verified
Outflow given Linear Storage
Go
Verified
Storage during beginning of time interval for continuity equation of reach
Go
Verified
Storage during end of time interval in continuity equation for reach
Go
Verified
Storage during end of time interval in Muskingum method of Routing
Go
Verified
Storage in beginning of time interval
Go
Verified
Total wedge storage in channel reach
Go
Hydrologic Storage Routing
(4)
Verified
Coefficient of Discharge when Outflow is Considered
Go
Verified
Effective length of spillway crest when outflow is considered
Go
Verified
Head over Spillway when Outflow is Considered
Go
Verified
Outflow in Spillway
Go
Influent and Effluent BOD
(3)
Verified
Effluent BOD given Overall Efficiency of Two-Stage Trickling Filter
Go
Verified
Influent BOD given BOD Loading for First Stage Filter
Go
Verified
Influent BOD given Overall Efficiency of Two-stage Trickling Filter
Go
Influent Substrate Concentration
(3)
Verified
Influent Substrate Concentration given Net Waste Activated Sludge
Go
Verified
Influent Substrate Concentration given Theoretical Oxygen Requirement
Go
Verified
Influent Substrate Concentration given Volume of Reactor
Go
2 More Influent Substrate Concentration Calculators
Go
Inglis and Dsouza Formula
(2)
Verified
Equation for Runoff for Deccan Plateau
Go
Verified
Equation for Runoff for Ghat Regions of Western India
Go
Inglis Formula
(3)
Verified
Inglis Formula for areas between 160 to 1000 square kilometers
Go
Verified
Inglis Formula for Larger Areas
Go
Verified
Inglis Formula for Small Areas (also applicable for fan shaped catchment)
Go
Inlet Currents and Tidal Elevations
(10)
Verified
Average Area over Channel Length for Flow through Inlet into Bay
Go
Verified
Average Area over Channel Length using King's Dimensionless Velocity
Go
Verified
Average Velocity in Channel for Flow through Inlet into Bay
Go
Verified
Bay Tide Amplitude given Tidal Prism Filling Bay
Go
Verified
King's Dimensionless Velocity
Go
Verified
Maximum Cross-Sectionally Averaged Velocity during Tidal Cycle
Go
Verified
Ocean Tide Amplitude using King's Dimensionless Velocity
Go
Verified
Surface Area of Bay for Flow through Inlet into Bay
Go
Verified
Surface Area of Bay using King's Dimensionless Velocity
Go
Verified
Tidal Period using King's Dimensionless Velocity
Go
18 More Inlet Currents and Tidal Elevations Calculators
Go
Integration of the Varied Flow Equation
(1)
Verified
Manning's Formula for Energy Slope
Go
11 More Integration of the Varied Flow Equation Calculators
Go
Interception
(5)
Verified
Duration of rainfall given interception loss
Go
Verified
Evaporation rate given interception Loss
Go
Verified
Interception Loss
Go
Verified
Interception storage given interception loss
Go
Verified
Ratio of Vegetal Surface Area to its Projected Area given Interception Loss
Go
Irregular Waves
(1)
Verified
Deepwater Wave Height given Maximum Runup
Go
15 More Irregular Waves Calculators
Go
Jet Propulsion of Ships
(2)
Verified
Efficiency of Propulsion
Go
Verified
Efficiency of Propulsion given Head Loss due to Friction
Go
8 More Jet Propulsion of Ships Calculators
Go
Job Mix Concrete Volume
(1)
Verified
Water Cement Ratio
Go
5 More Job Mix Concrete Volume Calculators
Go
Joglekar's Equation
(4)
Verified
Annual Sediment Yield Rate
Go
Verified
Catchment Area given Volume of Sediment Yield per Year from Catchment Area
Go
Verified
Catchment Area when Annual Sediment Yield Rate
Go
Verified
Volume of Sediment Yield per Year from Catchment Area
Go
Khoslas's Equation
(3)
Verified
Area of catchment given volume of sediment yield per year from catchment
Go
Verified
Catchment Area when Annual Sediment Yield Rate on Volume basis
Go
Verified
Volume of Sediment Yield per year from Catchment
Go
1 More Khoslas's Equation Calculators
Go
Khoslas's Formula
(5)
Verified
Mean Monthly Temperature of Catchment given Monthly Losses
Go
Verified
Monthly losses given mean monthly temperature of catchment
Go
Verified
Monthly Losses using Monthly Runoff
Go
Verified
Monthly Precipitation given Monthly Runoff
Go
Verified
Monthly Runoff
Go
Kinetic Energy
(3)
Verified
Kinetic Energy due to Particle Motion
Go
Verified
Wave Height given Kinetic Energy due to Particle Motion
Go
Verified
Wave Length for Kinetic Energy due to Particle Motion
Go
1 More Kinetic Energy Calculators
Go
Kirpich Equation
(4)
Verified
Kirpich Adjustment Factor
Go
Verified
Maximum Length of Travel of Water
Go
Verified
Slope of catchment about given time of concentration
Go
Verified
Time of Concentration from Kirpich Adjustment Factor
Go
Laminar Flow around a Sphere–Stokes’ Law
(4)
Verified
Diameter of Sphere given Resistance Force on Spherical Surface
Go
Verified
Dynamic Viscosity of fluid given Resistance Force on Spherical Surface
Go
Verified
Resistance Force on Spherical Surface given Specific Weights
Go
Verified
Velocity of Sphere given Resistance Force on Spherical Surface
Go
14 More Laminar Flow around a Sphere–Stokes’ Law Calculators
Go
Laminar Flow between Parallel Flat Plates, one plate moving and other at rest, Couette Flow
(1)
Verified
Mean Velocity of Flow given Flow Velocity
Go
11 More Laminar Flow between Parallel Flat Plates, one plate moving and other at rest, Couette Flow Calculators
Go
Laminar Flow between Parallel Plates, both plates at rest
(1)
Verified
Distance between Plates given Pressure Difference
Go
19 More Laminar Flow between Parallel Plates, both plates at rest Calculators
Go
Laminar Flow Through Inclined Pipes
(11)
Verified
Dynamic Viscosity given Flow Velocity of Stream
Go
Verified
Dynamic Viscosity given Velocity Gradient with Shear Stress
Go
Verified
Flow Velocity of Stream
Go
Verified
Piezometric Gradient given Shear Stress
Go
Verified
Piezometric Gradient given Velocity Gradient with Shear Stress
Go
Verified
Radius of Elemental Section of Pipe given Shear Stress
Go
Verified
Radius of Elemental Section of Pipe given Velocity Gradient with Shear Stress
Go
Verified
Shear Stresses
Go
Verified
Specific Weight of Fluid given Shear Stress
Go
Verified
Specific Weight of Liquid given Velocity Gradient with Shear Stress
Go
Verified
Velocity Gradient given Piezometric Gradient with Shear Stress
Go
4 More Laminar Flow Through Inclined Pipes Calculators
Go
Landing Distance under Estimation of Runway Length
(2)
Verified
Additional Distance required for Turns given Distance between Center lines
Go
Verified
Distance between Center Lines of Runway and Parallel Taxiway
Go
2 More Landing Distance under Estimation of Runway Length Calculators
Go
Lap of flange
(6)
Created
Diameter of Wheel given Lap of Flange
Go
Created
Extra Track Width in Curves
Go
Created
Lap of Flange given Diameter of Wheel
Go
Created
Lap of Flange given Extra Width of Track
Go
Created
Radius of Curve given Extra Width
Go
Created
Wheel Base given Extra Width
Go
Lateral Forces
(8)
Created
Characteristic Length given Seat Load on Rail
Go
Created
Maximum Contact Shear Stress
Go
Created
Maximum Load on Rail Seat
Go
Created
Radius of Wheel given Shear Stress
Go
Created
Section Modulus of Rail given Seat Load
Go
Created
Sleeper Spacing given seat load on rail
Go
Created
Static Wheel Load given Shear Stress
Go
Created
Wheel Load given seat load
Go
Length of the Crest
(2)
Verified
Length of Crest Considering Velocity
Go
Verified
Length of Crest without Considering Velocity
Go
7 More Length of the Crest Calculators
Go
Levelling
(17)
Created
Angle of Dip for Compass Surveying
Go
Created
Back Sight given Height of Instrument
Go
Created
Combined Error Due to Curvature and Refraction
Go
Created
Correction on Refraction Error
Go
Created
Difference in Elevation between Ground Points in short lines under Trigonometric levelling
Go
Created
Difference in Elevation between Two Points using Barometric Levelling
Go
Created
Distance between Two points under Curvature and Refraction
Go
Created
Distance for small errors under Curvature and Refraction
Go
Created
Distance to Visible Horizon
Go
Created
Error Due to Curvature Effect
Go
Created
Height of Instrument
Go
Created
Height of Observer
Go
Created
Permissible Closing Error for Accurate Levelling
Go
Created
Permissible Closing Error for Ordinary Levelling
Go
Created
Permissible Closing Error for Precise Levelling
Go
Created
Permissible Closing Error for Rough Levelling
Go
Created
Reduced Level given Height of Instrument
Go
Linear Dispersion Relation of Linear Wave
(13)
Verified
Dimensionless Wave Speed
Go
Verified
Equation for Constant A from linear equations of Standing Waves
Go
Verified
Guo Formula of Linear Dispersion Relation
Go
Verified
Guo Formula of Linear Dispersion Relation for Wave Number
Go
Verified
Radian Frequency of Waves
Go
Verified
Radian frequency of waves given equation for constant
Go
Verified
Relative Wavelength
Go
Verified
Velocity of Propagation in Linear Dispersion Relation
Go
Verified
Velocity of Propagation in Linear Dispersion Relation given Wavelength
Go
Verified
Wave Height given Equation for Constant A
Go
Verified
Wave Number of Convenient Empirical Explicit Approximation
Go
Verified
Wave period given radian frequency of waves
Go
Verified
Wavelength given wave number
Go
1 More Linear Dispersion Relation of Linear Wave Calculators
Go
Liquid Containers Subjected To Constant Horizontal Acceleration
(1)
Verified
Pressure at Any Points in Liquid
Go
10 More Liquid Containers Subjected To Constant Horizontal Acceleration Calculators
Go
Liquid Containers Subjected To Constant Vertical Acceleration
(3)
Verified
Constant Vertical Upward Acceleration given Pressure at any Point in Liquid
Go
Verified
Gauge Pressure at Any Point in Liquid Flow
Go
Verified
Specific Weight of Liquid given Pressure at point in Liquid
Go
9 More Liquid Containers Subjected To Constant Vertical Acceleration Calculators
Go
Load Bearing Walls
(3)
Verified
28-Day Concrete Compressive Strength given Axial Capacity of Wall
Go
Verified
Axial Capacity of Wall
Go
Verified
Wall Section Gross Area given Axial Capacity of Wall
Go
Load-Factor Design For Bridge Beams
(4)
Verified
Maximum bending strength for Symmetrical Flexural Braced Non-Compacted Section for LFD of Bridges
Go
Verified
Maximum Bending Strength for Symmetrical Flexural Compact Section for LFD of Bridges
Go
Verified
Minimum Flange Thickness for Symmetrical Flexural Braced Non-Compact Section for LFD of Bridges
Go
Verified
Minimum Web Thickness for Symmetrical Flexural Braced Non-Compact Section for LFD of Bridges
Go
11 More Load-Factor Design For Bridge Beams Calculators
Go
Local Fluid Velocity
(6)
Verified
Horizontal Component of Local Fluid Velocity
Go
Verified
Local Fluid Particle Acceleration of Horizontal Component
Go
Verified
Local Fluid Particle Acceleration of Vertical Component of Fluid Velocity
Go
Verified
Vertical Component of Local Fluid Velocity
Go
Verified
Wave Period for Horizontal Component of Local Fluid Velocity
Go
Verified
Wave Period for Vertical Component of Local Fluid Velocity
Go
Losses Due to Creep and Shrinkage
(7)
Created
Creep Coefficient given Creep Strain
Go
Created
Elastic Strain given Creep Strain
Go
Created
Loss in Prestress given Creep Strain
Go
Created
Loss in Prestress given Shrinkage Strain
Go
Created
Shrinkage Strain for Post tensioning
Go
Created
Ultimate Creep Strain
Go
Created
Ultimate Shrinkage Strain given Loss in Prestress
Go
Low Flow
(2)
Verified
Cease to Flow Depth given Depth at Gauging Station
Go
Verified
Depth at Gauging Station
Go
Management of Construction Equipment
(11)
Created
Average Investment if Salvage Value is not 0
Go
Created
Average Investment when Salvage value is 0
Go
Created
Book Value for New Machine
Go
Created
Capacity of Crankcase when Quantity of Oil is Determined
Go
Created
Capital Cost when Salvage Value is 0
Go
Created
Depreciation Cost when Straight Line Method is Assumed
Go
Created
Horsepower given Quantity of Oil
Go
Created
Hourly Cost Worker
Go
Created
Hourly Depreciation
Go
Created
Life Span of Machine
Go
Created
Quantity of Lubricating Oil
Go
Manning's Formula in Uniform Flow
(1)
Verified
Manning's Formula for Coefficient of Roughness given Average Velocity
Go
6 More Manning's Formula in Uniform Flow Calculators
Go
Materials
(7)
Created
Creep Coefficient in European Code
Go
Created
Empirical Formula for Secant Modulus Proposed by Hognestad in ACI Code
Go
Created
Empirical Formula for Secant Modulus Proposed by Jensen
Go
Created
Empirical Formula for Secant Modulus using ACI Code Provisions
Go
Created
Instantaneous Strain given Cc
Go
Created
Total Strain
Go
Created
Total Strain given Creep Coefficient
Go
Maximum Shear Stress on the Biaxial Loading
(2)
Verified
Maximum Shear Stress when Member is Subjected to like Principal Stresses
Go
Verified
Stress along Y-Axis when Member is Subjected to like Principal Stresses and Max Shear Stress
Go
1 More Maximum Shear Stress on the Biaxial Loading Calculators
Go
Maximum Stress of a Triangular Section
(1)
Verified
Height of Triangular Section given Shear Stress at Neutral Axis
Go
7 More Maximum Stress of a Triangular Section Calculators
Go
Maximum Value of Specific Yield for Various Hydrogeologic Conditions based on Norms
(10)
Verified
Possible Recharge in Clayey Alluvial Areas for Maximum Value of Specific Yield
Go
Verified
Possible Recharge in Hard Rock Areas with Karstified Limestone for Maximum Specific Yield
Go
Verified
Possible Recharge in Hard Rock Areas with Laterite for Maximum Specific Yield
Go
Verified
Possible Recharge in Hard Rock Areas with Low Clay Content for Maximum Value of Specific Yield
Go
Verified
Possible Recharge in Hard Rock Areas with Massive, Poorly Fractured Rock for Maximum Specific Yield
Go
Verified
Possible Recharge in Hard Rock Areas with Phyllites, Shales for Maximum Specific Yield
Go
Verified
Possible Recharge in Hard Rock Areas with Sandstone for Maximum Specific Yield
Go
Verified
Possible Recharge in Hard Rock Areas with Significant Clay Content for Maximum Specific Yield
Go
Verified
Possible Recharge in Hard Rock Areas with Weathered Jointed Basalt for Maximum Specific Yield
Go
Verified
Possible Recharge in Silty Alluvial Areas for Maximum Value of Specific Yield
Go
3 More Maximum Value of Specific Yield for Various Hydrogeologic Conditions based on Norms Calculators
Go
Maximum Yield Coefficient
(2)
Verified
Maximum Yield Coefficient given Observed Cell Yield
Go
Verified
Maximum Yield Coefficient given Volume of Reactor
Go
Mean Cell Residential Time
(2)
Verified
Mean Cell Residence Time given Observed Cell Yield
Go
Verified
Mean Cell Residence Time given Reactor Volume
Go
Mean Velocity of Flow
(4)
Verified
Mean Velocity of Flow given Friction Factor
Go
Verified
Mean Velocity of Flow given Head Loss due to Frictional Resistance
Go
Verified
Mean Velocity of Flow given Shear Stress and Density
Go
Verified
Mean Velocity of Flow given Total Required Power
Go
1 More Mean Velocity of Flow Calculators
Go
Measured Wind Directions
(17)
Verified
Ambient Pressure at Periphery of Storm
Go
Verified
Characteristic Wave Height given Dimensionless Wave Height
Go
Verified
Cyclostrophic Approximation to Wind Speed
Go
Verified
Dimensionless Fetch
Go
Verified
Dimensionless Fetch given Fetch-limited Dimensionless Wave Height
Go
Verified
Dimensionless Wave Frequency
Go
Verified
Dimensionless Wave Height
Go
Verified
Distance from Center of Storm Circulation to Location of Maximum Wind Speed
Go
Verified
Fetch-Limited Dimensionless Wave Height
Go
Verified
Frequency of Spectral Peak for Dimensionless Wave Frequency
Go
Verified
Friction Velocity for Dimensionless Wave Frequency
Go
Verified
Friction Velocity given Dimensionless Fetch
Go
Verified
Friction Velocity given Dimensionless Wave Height
Go
Verified
Fully Developed Wave Height
Go
Verified
Maximum Velocity in Storm
Go
Verified
Pressure Profile in Hurricane Winds
Go
Verified
Wind Speed given Fully Developed Wave Height
Go
2 More Measured Wind Directions Calculators
Go
Measurement of Evaporation
(2)
Verified
Transpiration ratio
Go
Verified
Water consumed by transpiration
Go
Methods to Predict Channel Shoaling
(19)
Verified
Angular velocity of Earth for velocity at surface
Go
Verified
Change of Ebb Tidal Energy Flux across Ocean Bar between Natural and Channel Conditions
Go
Verified
Coefficient given Water Surface Slope by Eckman
Go
Verified
Density of Water given Velocity at Surface
Go
Verified
Density of Water given Water Surface Slope
Go
Verified
Depth after Dredging given Transport Ratio
Go
Verified
Depth before Dredging given Transport Ratio
Go
Verified
Depth given Velocity at Surface
Go
Verified
Depth of Navigation Channel given Depth of Channel to depth at which Ocean Bar meets Sea Bottom
Go
Verified
Hoerls Special function Distribution
Go
Verified
Latitude given Velocity at Surface
Go
Verified
Maximum instantaneous Ebb Tide Discharge per unit Width
Go
Verified
Ratio of Depth of Channel to Depth at which Seaward Slope of Ocean Bar meets Sea Bottom
Go
Verified
Shear Stress at Water Surface given Velocity at Surface
Go
Verified
Shear Stress at Water Surface given Water Surface Slope
Go
Verified
Tidal Period given Change of Ebb Tidal Energy Flux across Ocean Bar
Go
Verified
Transport Ratio
Go
Verified
Water Depth where Seaward Tip of Ocean Bar meets Offshore Sea Bottom
Go
Verified
Water Surface Slope
Go
1 More Methods to Predict Channel Shoaling Calculators
Go
Milled Surface
(3)
Created
Allowable Bearing Stress for Milled Surface Including Bearing Stiffeners
Go
Created
Allowable Bearing Stress for Rollers and Rockers
Go
Created
Diameter of Roller or Rocker given Allowable Bearing Stress
Go
Minimum Value of Specific Yield for Various Hydrogeologic Conditions based on Norms
(1)
Verified
Possible Recharge in Sandy Alluvial Area given Minimum value of Specific Yield for Area
Go
12 More Minimum Value of Specific Yield for Various Hydrogeologic Conditions based on Norms Calculators
Go
MLSS and MLVSS
(4)
Verified
Mixed Liquor Suspended Solids given Wasting Rate from Return Line
Go
Verified
Mixed Liquor Volatile Suspended Solids given Reactor Volume
Go
Verified
MLSS given RAS Pumping Rate from Aeration Tank
Go
Verified
MLSS using Wasting rate from Return Line when Concentration of Solid in Effluent is Low
Go
Modified Darcy's Laws
(3)
Verified
Flow through any square for total flow
Go
Verified
Number of squares through which flow occurs
Go
Verified
Total flow through any set or group of equipotential lines
Go
3 More Modified Darcy's Laws Calculators
Go
Modified Pul's Method
(2)
Verified
Storage at beginning of time interval in modified Pul's Method
Go
Verified
Storage at end of time interval in modified Pul's method
Go
Modified Universal Soil Loss Equation
(1)
Verified
Peak Rate of Runoff given Sediment Yield from Individual Storm
Go
5 More Modified Universal Soil Loss Equation Calculators
Go
Modulus of Elasticity
(2)
Verified
Young's Modulus of Concrete
Go
Verified
Young's Modulus of Elasticity as per ACI 318 Building Code Requirements for Reinforced Concrete
Go
3 More Modulus of Elasticity Calculators
Go
Moments acting on Arch Dam
(4)
Verified
Moment at Abutments of Arch Dam
Go
Verified
Moments given Extrados Stresses on Arch Dam
Go
Verified
Moments given Intrados Stresses on Arch Dam
Go
Verified
Moments given Rotation due to Twist on Arch Dam
Go
3 More Moments acting on Arch Dam Calculators
Go
Momentum Theory of Propellers
(1)
Verified
Rate of Flow given Thrust on Propeller
Go
15 More Momentum Theory of Propellers Calculators
Go
Mooring
(9)
Verified
Effective Spring Constant given Undamped Natural Period
Go
Verified
Elongation in Mooring Line given percent Elongation in Mooring Line
Go
Verified
Length of Mooring Line given percent Elongation in Mooring Line
Go
Verified
Mass of Vessel due to Inertial Effects of Water entrained with Vessel
Go
Verified
Mass of Vessel given Virtual Mass of Vessel
Go
Verified
Percent Elongation in Mooring Line
Go
Verified
Undamped Natural Period of Vessel
Go
Verified
Virtual Mass of Vessel
Go
Verified
Virtual Mass of Vessel given Undamped Natural Period
Go
3 More Mooring Calculators
Go
Mooring Forces
(19)
Verified
Angle of Current Relative to Longitudinal Axis of Vessel given Reynolds Number
Go
Verified
Area Ratio given Expanded or Developed Blade Area of Propeller
Go
Verified
Average Current Speed given Reynolds number
Go
Verified
Coefficient of Drag for Winds Measured at 10 m given Drag Force due to Wind
Go
Verified
Displacement of vessel for wetted surface area of vessel
Go
Verified
Drag Force due to Wind
Go
Verified
Elevation given Velocity at Desired Elevation
Go
Verified
Expanded or developed blade area of propeller
Go
Verified
Kinematic Viscosity of water given Reynolds Number
Go
Verified
Mass Density of Air given Drag Force due to Wind
Go
Verified
Projected Area of Vessel above Waterline given Drag Force due to Wind
Go
Verified
Velocity at Desired Elevation Z
Go
Verified
Vessel beam given expanded or developed blade area of propeller
Go
Verified
Waterline length of vessel for wetted Surface Area of Vessel
Go
Verified
Waterline Length of Vessel given Expanded or Developed Blade Area
Go
Verified
Waterline Length of Vessel given Reynolds Number
Go
Verified
Wetted Surface Area of Vessel
Go
Verified
Wind Speed at Standard Elevation of 10 m above Water's Surface using Drag Force due to Wind
Go
Verified
Wind Speed at Standard Elevation of 10 m given Velocity at Desired Elevation
Go
2 More Mooring Forces Calculators
Go
Most Economic Steel Structure
(9)
Verified
Cross Sectional Area1 given Material Cost Ratio
Go
Verified
Cross Sectional Area2 given Material Cost Ratio
Go
Verified
Material Cost Ratio
Go
Verified
Material Price p1 given Material Cost Ratio
Go
Verified
Material price p2 given Material Cost Ratio
Go
Verified
Relative Material Cost Ratio when designed to Carry same Load
Go
Verified
Relative Price Factors using Relative Material Cost Ratio
Go
Verified
Yield Stress of Steel1 using Relative Material Cost ratio
Go
Verified
Yield Stress of Steel2 using Relative Material Cost ratio
Go
15 More Most Economic Steel Structure Calculators
Go
Most Economical Pipe
(1)
Verified
Discharge for Most Economical Pipe Diameter for Distribution System
Go
7 More Most Economical Pipe Calculators
Go
Movement of Sediments from Watersheds
(2)
Verified
Watershed Length when Sediment Delivery Ratio is considered
Go
Verified
Watershed Relief when Sediment Delivery Ratio is considered
Go
1 More Movement of Sediments from Watersheds Calculators
Go
Muskingum Equation
(4)
Verified
Change in Storage in Muskingum Method of Routing
Go
Verified
Muskingum Equation
Go
Verified
Muskingum Routing Equation
Go
Verified
Outflow at Beginning of Time Interval in Muskingum Continuity Equation
Go
Nash's Conceptual Model
(8)
Verified
Equation for Inflow from Continuity Equation
Go
Verified
Ordinates of instantaneous unit hydrograph representing IUH of catchment
Go
Verified
Outflow in First Reservoir
Go
Verified
Outflow in n'th Reservoir
Go
Verified
Outflow in Second Reservoir
Go
Verified
Outflow in Third Reservoir
Go
Verified
Second moment of DRH about time origin divided by total direct runoff
Go
Verified
Second moment of ERH about time origin divided by total excess rainfall
Go
Natural Flow
(7)
Verified
Change in Storage Volumes
Go
Verified
Natural Flow Volume
Go
Verified
Net evaporation losses from reservoir on stream
Go
Verified
Net export of water from basin
Go
Verified
Observed Flow Volume at Terminal Site given Natural Flow Volume
Go
Verified
Volume diverted out of stream
Go
Verified
Volume of Return Flow
Go
Nearshore Currents
(6)
Verified
Oscillatory Flow due to Infragravity Waves
Go
Verified
Oscillatory Flow due to Wind Waves
Go
Verified
Steady Current driven by Breaking Waves
Go
Verified
Tidal current given total current in surf zone
Go
Verified
Total current in surf zone
Go
Verified
Wind driven current given total current in surf zone
Go
Negative Surges
(4)
Verified
Absolute Velocity of Surges
Go
Verified
Celerity of Wave given is Depth
Go
Verified
Velocity of Flow given Absolute Velocity of Surges
Go
Verified
Velocity of Flow given Depth of flow
Go
5 More Negative Surges Calculators
Go
Net Waste Activated Sludge
(2)
Verified
Net Waste Activated Sludge
Go
Verified
Net Waste Activated Sludge given Theoretical Oxygen Requirement
Go
Newton’s Friction Postulation
(4)
Verified
Dynamic Viscosity of Fluid given Shear Force per Unit Area or Shear Stress
Go
Verified
Mass Density of Fluid for given Kinematic Viscosity
Go
Verified
Shear Force Per Unit Area or Shear Stress
Go
Verified
Velocity Gradient given Shear Force per unit area or Shear Stress
Go
5 More Newton’s Friction Postulation Calculators
Go
Non-Linear Wave Theory
(2)
Verified
Mean depth given Ursell number
Go
Verified
Wavelength given Ursell number
Go
12 More Non-Linear Wave Theory Calculators
Go
Non-Uniform Flow
(9)
Verified
Average conveyance of channel for non-uniform flow
Go
Verified
Average energy slope given average conveyance for non uniform flow
Go
Verified
Average Energy Slope given Frictional Loss
Go
Verified
Conveyance of Channel at end Sections at 1
Go
Verified
Conveyance of channel for non-uniform flow for end section
Go
Verified
Conveyance of channel for non-uniform flow for end sections
Go
Verified
Discharge in non uniform flow by conveyance method
Go
Verified
Frictional Loss given Average Energy Slope
Go
Verified
Length of Reach given Average Energy Slope for Non Uniform Flow
Go
4 More Non-Uniform Flow Calculators
Go
Normal Radial Pressure of Arch Dams
(1)
Verified
Normal Radial Pressure at centerline given Moment at Abutments of Arch Dam
Go
3 More Normal Radial Pressure of Arch Dams Calculators
Go
Normal-Weight, Normal-Density Concrete
(1)
Verified
Modulus of Elasticity of Normal Weight and Density Concrete in SI Units
Go
1 More Normal-Weight, Normal-Density Concrete Calculators
Go
Number of Connectors in Bridges
(5)
Verified
Area of Longitudinal Reinforcing given Force in Slab at Maximum Negative Moments
Go
Verified
Force in Slab at Maximum Negative Moments given Reinforcing Steel Yield Strength
Go
Verified
Force in Slab given Number of Connectors in Bridges
Go
Verified
Total Area of Steel Section given Force in Slab
Go
Verified
Ultimate Shear Connector Strength given Minimum Number of Connectors in Bridges
Go
13 More Number of Connectors in Bridges Calculators
Go
Number of Connectors Required for Building Construction
(11)
Verified
Actual Area of Effective Concrete Flange given Total Horizontal Shear
Go
Verified
Area of Steel Beam given Total horizontal Shear Vh
Go
Verified
Maximum Moment in Span given Number of Shear Connectors
Go
Verified
Moment at Concentrated Load given Number of Shear Connectors
Go
Verified
Number of Shear Connectors
Go
Verified
Number of Shear Connectors between M max and Zero Moment
Go
Verified
Specified Compressive Strength of Concrete given Total Horizontal Shear
Go
Verified
Total Horizontal Shear
Go
Verified
Total horizontal shear Vh
Go
Verified
Total number of connectors to resist total horizontal shear
Go
Verified
Yield Strength given Total Horizontal Shear
Go
Observed Cell Yield
(2)
Verified
Observed Cell Yield
Go
Verified
Observed Cell Yield given Net Waste Activated Sludge
Go
Offsets From Long Chord
(3)
Created
Mid Ordinate given Ox
Go
Created
Mid Ordinate when Offsets from Long Chord is Used for Setting Out
Go
Created
Offset at Distance x from Mid-Point
Go
One Dimensional Dupit's flow with Recharge
(8)
Verified
Coefficient of Aquifer Permeability given Maximum Height of Water Table
Go
Verified
Coefficient of Aquifer Permeability given water table profile
Go
Verified
Coefficient of aquifer permeability when discharge per unit width of aquifer
Go
Verified
Discharge at downstream water body of catchment
Go
Verified
Discharge entering drain per unit length of drain
Go
Verified
Discharge per Unit Width of Aquifer at any Location x
Go
Verified
Equation for head for unconfined aquifer on horizontal impervious base
Go
Verified
Equation for Water Divide
Go
Open and Closed Basins
(1)
Verified
Number of Nodes along long Basin Axis in Open Basin
Go
3 More Open and Closed Basins Calculators
Go
Open Wells
(3)
Verified
Depression Head for Flow Discharge into well
Go
Verified
Flow Discharge into Well
Go
Verified
Proportionality Constant for Flow Discharge into well
Go
OSD
(3)
Verified
Minimum Overtaking Distance
Go
Verified
Spacing between Vehicles given Total Time of Travel in Overtaking Sight distance
Go
Verified
Total Time of Travel in Overtaking Sight distance
Go
7 More OSD Calculators
Go
Parabolic Curves
(2)
Verified
Distance from PVC to Lowest Point on Sag Curve
Go
Verified
Rate of Change of Grade given Distance from PVC to Lowest Point on Sag Curve
Go
5 More Parabolic Curves Calculators
Go
Parametric Spectrum Models
(11)
Verified
Dimensionless Time
Go
Verified
Frequency of Spectral Peak
Go
Verified
Frequency of Spectral Peak Given Wind Speed
Go
Verified
Maximum Controlling Parameter for Angular Distribution
Go
Verified
Shape Factor for Higher Frequency Component
Go
Verified
Significant Wave Height given Significant Wave Height of Lower and Higher frequency Components
Go
Verified
Significant Wave Height of Higher frequency Component
Go
Verified
Significant Wave Height of Lower frequency Component
Go
Verified
Weighing Factor for Angular Frequency greater than One
Go
Verified
Weighing Factor for angular frequency lesser than or equal to one
Go
Verified
Wind Speed given Maximum Controlling Parameter for Angular Distribution
Go
8 More Parametric Spectrum Models Calculators
Go
Path followed by the main Undercarriage of Taxiing Aircraft
(2)
Verified
Datum Length of Aircraft given Deviation of main Undercarriage
Go
Verified
Deviation of Main Undercarriage
Go
Peak Discharge
(4)
Verified
Drainage area given peak discharge for field application
Go
Verified
Mean annual flood proposed by natural environment research council
Go
Verified
Peak Discharge Equation based on Field Application
Go
Verified
Peak value of runoff
Go
Penman's Equation
(4)
Verified
Equation for Net Radiation of Evaporable Water
Go
Verified
Net Radiation of Evaporable water given Daily Potential Evapotranspiration
Go
Verified
Parameter Including Wind Velocity and Saturation Deficit
Go
Verified
Penman's Equation
Go
Permanent Control
(2)
Verified
Gauge Height given Discharge for Non Alluvial Rivers
Go
Verified
Relationship between stage and discharge for non alluvial rivers
Go
Perpendicular Offsets from Tangents
(2)
Created
Approximate Equation for Offset at Distance x from Mid-Point
Go
Created
Radius given Approximate Equation for Offset
Go
Phase Difference Method
(5)
Created
Double Path Measurement
Go
Created
Fraction Part of Wavelength
Go
Created
Fraction Part of Wavelength given Double Path Measurement
Go
Created
Integer Part of Wavelength for given Double Path
Go
Created
Wavelength given Double Path
Go
Philip's Equation (1957)
(5)
Verified
Darcy's Hydraulic Conductivity given Infiltration Capacity from Philip's Equation
Go
Verified
Equation for Infiltration Capacity
Go
Verified
Philip's Equation
Go
Verified
Sorptivity for Cumulative Infiltration Capacity is from Philip's Equation
Go
Verified
Sorptivity given infiltration capacity
Go
1 More Philip's Equation (1957) Calculators
Go
Pipe Stresses Perpendicular To The Longitudinal Axis
(2)
Verified
Internal Pressure of Pipe
Go
Verified
Outside Diameter of Pipe given Internal Pressure
Go
1 More Pipe Stresses Perpendicular To The Longitudinal Axis Calculators
Go
Plain Suction Dredge
(5)
Verified
Concentration of Soil in Volumetric Basis
Go
Verified
Specific Weight of Dry Sand Grains for Concentration of Soil in Volumetric Basis
Go
Verified
Specific Weight of Mixture for Concentration of Soil in Volumetric Basis
Go
Verified
Specific Weight of Mixture in Suction Pipe for Concentration of Soil in Volumetric Basis
Go
Verified
Specific Weight of Water in Suction Pipe
Go
4 More Plain Suction Dredge Calculators
Go
Polytropic Atmosphere
(1)
Verified
Temperature Lapse Rate
Go
5 More Polytropic Atmosphere Calculators
Go
Porosity
(2)
Verified
Porosity given Bulk Pore Velocity
Go
Verified
Volume of Solids given Porosity
Go
3 More Porosity Calculators
Go
Post-Tensioned Members
(16)
Created
Area of Concrete Section given Prestress Drop
Go
Created
Average Stress when Parabolic Tendons are Used
Go
Created
Change in Eccentricity of Tendon A due to Parabolic Shape
Go
Created
Change in Eccentricity of Tendon B due to Parabolic Shape
Go
Created
Change in Strain in Tendon given Prestress Drop
Go
Created
Component of Strain at Level of First Tendon due to Bending
Go
Created
Component of Strain at Level of First Tendon due to Pure Compression
Go
Created
Prestress Drop
Go
Created
Prestress Drop given Modular Ratio
Go
Created
Prestress Drop given Strain due to Bending and Compression in Two Parabolic Tendons
Go
Created
Prestress Drop given Stress in concrete at Same Level due to Prestressing Force
Go
Created
Prestress Drop when Two parabolic Tendons are Incorporated
Go
Created
Prestressing Force in Tendon B using Eccentricities
Go
Created
Stress in Concrete given Prestress Drop
Go
Created
Variation of Eccentricity of Tendon B
Go
Created
Variation of Eccentricity on Tendon A
Go
Post-Tensioned Members
(12)
Verified
Allowable Bearing Stress in Local Zone
Go
Verified
Allowable Stress given End Zone Reinforcement
Go
Verified
Bearing Stress in Local Zone
Go
Verified
Bursting Force for Square End Zone
Go
Verified
Cube Strength at Transfer given Allowable Bearing Stress
Go
Verified
End Zone Reinforcement along Transmission Length
Go
Verified
End Zone Reinforcement in each Direction
Go
Verified
Length of Side of Bearing Plate given Bursting Force for Square End Zone
Go
Verified
Prestress in Tendon given Bearing Stress
Go
Verified
Prestress in Tendon given Bursting Force for Square End Zone
Go
Verified
Stress in Transverse Reinforcement given End Zone Reinforcement
Go
Verified
Transverse Dimension of End Zone given Bursting Force for Square End Zone
Go
Potential Energy
(6)
Verified
Length given potential energy due to deformation of free surface
Go
Verified
Potential energy due to deformation of free surface
Go
Verified
Potential Energy per unit width in one wave
Go
Verified
Surface elevation given potential energy due to deformation of free surface
Go
Verified
Wave Height given Potential Energy per Unit Width in One Wave
Go
Verified
Wavelength for potential energy per unit width in one wave
Go
Potential Evapotranspiration of Crops
(10)
Verified
Potential Evapotranspiration of Cotton
Go
Verified
Potential Evapotranspiration of Dense Natural Vegetation
Go
Verified
Potential Evapotranspiration of Light Natural Vegetation
Go
Verified
Potential Evapotranspiration of Maize
Go
Verified
Potential Evapotranspiration of Medium Natural Vegetation
Go
Verified
Potential Evapotranspiration of Potatoes
Go
Verified
Potential Evapotranspiration of Rice
Go
Verified
Potential Evapotranspiration of Sugarcane
Go
Verified
Potential Evapotranspiration of Very Dense Vegetation
Go
Verified
Potential Evapotranspiration of Wheat
Go
Power obtained from water flow
(2)
Verified
Power obtained from Water Flow in Horsepower
Go
Verified
Power obtained from Water Flow in Kilowatt given Effective Head
Go
1 More Power obtained from water flow Calculators
Go
Practical Channel Sections
(2)
Verified
Hydraulic Radius of Trapezoidal Channel Section
Go
Verified
Wetted Perimeter of Trapezoidal Channel Section
Go
6 More Practical Channel Sections Calculators
Go
Precipitation
(2)
Verified
Dredge or Burge formula
Go
Verified
Total Runoff over Catchment
Go
3 More Precipitation Calculators
Go
Predicting Waves in Deep Water
(3)
Verified
Significant Wave Height from Bretschneider Empirical Relationships
Go
Verified
Water Depth given Wavelength, Wave Period and Water Number
Go
Verified
Wave Number given Wavelength, Wave Period and Water Depth
Go
1 More Predicting Waves in Deep Water Calculators
Go
Pressure Diagram
(3)
Verified
Depth of Center of Pressure
Go
Verified
Pressure Intensity for Bottom Edge of Plane Surface
Go
Verified
Vertical Depth given Pressure Intensity for Bottom Edge of Plane Surface
Go
4 More Pressure Diagram Calculators
Go
Pressure Reference Factor
(4)
Verified
Pressure at any Distance below Fluid Surface given Second-Order Stokes Theory
Go
Verified
Pressure given Pressure Response Factor
Go
Verified
Pressure Reference Factor
Go
Verified
Pressure taken as Gauge Pressure relative to Wave Mechanics
Go
4 More Pressure Reference Factor Calculators
Go
Pre-Tensioned Members
(14)
Created
Initial Prestress given Prestress after Immediate Loss
Go
Created
Initial Strain in Steel for Known Strain due to Elastic Shortening
Go
Created
Initial Strain in Terms of Initial Prestressing Force
Go
Created
Modular Ratio given Prestress after Immediate Loss
Go
Created
Prestress Drop given Initial Prestress Force
Go
Created
Prestress Drop given Pressure after Immediate Loss
Go
Created
Prestress Force after Immediate Loss given Prestress Drop
Go
Created
Prestressing Force after Immediate Loss given Initial Prestress
Go
Created
Residual Strain in Steel for Known Strain due to Elastic Shortening
Go
Created
Residual Strain in Terms of Prestressing Force after Immediate Loss
Go
Created
Strain in Concrete due to Elastic Shortening
Go
Created
Strain in Concrete in Terms of prestressing Force after Immediate Loss
Go
Created
Stress in Concrete of Pre-Tensioned Bending Members
Go
Created
Transformed Area of Prestress Member for Known Pressure Drop
Go
Pre-Tensioned Members
(5)
Verified
Bond Length given Development Length of Section
Go
Verified
Development Length of Section
Go
Verified
Moment given End Zone Reinforcement
Go
Verified
Total Depth of Section given End Zone Reinforcement
Go
Verified
Transmission Length given Development Length of Section
Go
Probable Maximum Precipitation (PMP)
(1)
Verified
Statistical approach of PMP by using Chow's equation
Go
2 More Probable Maximum Precipitation (PMP) Calculators
Go
Project Evaluation and Review Technique
(17)
Created
Earliest Expected Occurrence Time of Event i
Go
Created
Earliest Expected Occurrence Time of Event j
Go
Created
Expected Time given Probability Factor
Go
Created
Expected Time of Activity i-j
Go
Created
Least Allowable Occurrence Time of Event i
Go
Created
Least Allowable Occurrence Time of Event j
Go
Created
Mean or Expected Time
Go
Created
Most Likely Time given Expected Time
Go
Created
Optimistic Time given Expected Time
Go
Created
Optimistic Time given Standard Deviation
Go
Created
Pessimistic Time given Expected Time
Go
Created
Pessimistic Time given Standard Deviation
Go
Created
Probability Factor
Go
Created
Scheduled Time given Probability Factor
Go
Created
Slack of Event i or j
Go
Created
Standard Deviation given Probability Factor
Go
Created
Standard Deviation of Activity
Go
Propeller Drag
(5)
Verified
Angle of Current relative to longitudinal axis of vessel given Propeller Drag
Go
Verified
Average Current Speed given Propeller Drag
Go
Verified
Expanded or Developed Blade Area of Propeller given Propeller Drag
Go
Verified
Propeller Drag Coefficient given Propeller Drag
Go
Verified
Propeller Drag due to Form Drag of Propeller with locked Shaft
Go
1 More Propeller Drag Calculators
Go
Pulse Method
(3)
Created
Completion Time for given Distance of Path
Go
Created
Distance Measured
Go
Created
Velocity in Medium given Distance
Go
Radar measurement of Rainfall
(3)
Verified
Intensity of rainfall given radar echo factor
Go
Verified
Radar Echo Factor using Intensity
Go
Verified
Radar Measurement of Rainfall
Go
Radius of Pipe
(1)
Verified
Radius of Pipe given Velocity at any Point in Cylindrical Element
Go
4 More Radius of Pipe Calculators
Go
Rainfall Erosivity Factor
(1)
Verified
Rainfall Erosion Index Unit of Storm
Go
2 More Rainfall Erosivity Factor Calculators
Go
Rainfall Infiltration Method
(4)
Verified
Catchment Area when Recharge from Rainfall is Considered
Go
Verified
Normal Rainfall in Monsoon Season
Go
Verified
Rainfall Infiltration Factor when Recharge from Rainfall is Considered
Go
Verified
Recharge from Rainfall in Monsoon Season by Rainfall Infiltration Method
Go
Rainfall-Runoff Correlation
(9)
Verified
Annual Precipitation in (i-1)th year given Antecedent Precipitation
Go
Verified
Annual Precipitation in (i-2)th year given Antecedent Precipitation
Go
Verified
Annual Precipitation in i-th year given Antecedent Precipitation
Go
Verified
Antecedent Precipitation Index
Go
Verified
Equation of straight line regression between runoff and rainfall
Go
Verified
Exponential Relationship for Larger Catchments
Go
Verified
Precipitation using Runoff from Exponential Relationship
Go
Verified
Precipitation using Runoff in Straight Line Regression between Runoff and Rainfall
Go
Verified
Runoff rainfall regression by logarithmic transformation
Go
Rainwater Accumulation and Drainage on Bridges
(1)
Verified
Deck Width for handling Rainwater Runoff to Drain Scuppers
Go
6 More Rainwater Accumulation and Drainage on Bridges Calculators
Go
RAS Pumping Rate
(2)
Verified
RAS Pumping Rate from Aeration Tank
Go
Verified
RAS Pumping Rate using Recirculation Ratio
Go
Rational Method
(8)
Verified
Coefficient of Runoff when Peak Value is Considered
Go
Verified
Coefficient of Runoff when Peak Discharge for Field Application is Considered
Go
Verified
Drainage Area when Peak Discharge for Field Application is Considered
Go
Verified
Drainage Area when Peak Discharge is considered
Go
Verified
Intensity of Precipitation when Peak Discharge for Field Application is Considered
Go
Verified
Intensity of Rainfall when Peak Discharge is Considered
Go
Verified
Peak Discharge for Field Application
Go
Verified
Value of Peak Discharge
Go
Recirculation Factor
(2)
Verified
Recirculation Factor
Go
Verified
Recirculation Factor given Efficiency of Second Filter Stage
Go
Recirculation Ratio
(1)
Verified
Recirculation Ratio of Wastewater
Go
1 More Recirculation Ratio Calculators
Go
Recommended value for Rainfall Factor for Various Hydrogeologic Conditions based on Norms
(13)
Verified
Recharge from Rainfall in Alluvial Indo Gangetic and Inland Areas
Go
Verified
Recharge from Rainfall in East Coast Alluvial Areas
Go
Verified
Recharge from Rainfall in Hard Rock Areas consisting Massive Poorly Fractured Rocks
Go
Verified
Recharge from Rainfall in Hard Rock Areas of Consolidated Sandstone
Go
Verified
Recharge from Rainfall in Hard Rock Areas with Granulite Facies
Go
Verified
Recharge from Rainfall in Hard Rock Areas with Laterite
Go
Verified
Recharge from Rainfall in Hard Rock Areas with Low Clay Content
Go
Verified
Recharge from Rainfall in Hard Rock Areas with Phyllites, Shales
Go
Verified
Recharge from rainfall in hard rock areas with semi consolidated sandstone
Go
Verified
Recharge from Rainfall in Hard Rock Areas with Significant Clay Content
Go
Verified
Recharge from Rainfall in Hard Rock Areas with Vesicular and Jointed Basalt
Go
Verified
Recharge from Rainfall in Hard Rock Areas with Weathered Basalt
Go
Verified
Recharge from Rainfall in West Coast Areas based on Recommended Rainfall Infiltration Factor
Go
Recommended value of Specific Yield for Various Hydrogeologic Conditions based on Norms
(13)
Verified
Possible Recharge in Clayey Alluvium Areas based on Known Norms of Specific Yield
Go
Verified
Possible Recharge in Hard Rock Areas of massive Poorly fractured Rocks
Go
Verified
Possible Recharge in Hard Rock Areas with karstified Limestone
Go
Verified
Possible Recharge in Hard Rock Areas with Laterite
Go
Verified
Possible Recharge in Hard Rock Areas with Limestone
Go
Verified
Possible Recharge in Hard Rock Areas with Phyllites, Shales given recommended specific Yield
Go
Verified
Possible Recharge in Hard Rock Areas with Quartzite