Total Time of Concentration Calculator

✖Inlet Time is the time taken by water to flow overland.ⓘ Inlet Time [T_i]			+10% -10%
✖Channel Flow Time is the time taken by water to flow in the drain channel.ⓘ Channel Flow Time [T_m/f]			+10% -10%

✖Time of Concentration is a concept used in hydrology to measure the response of a watershed to a rain event.ⓘ Total Time of Concentration [t_c]

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Formula

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Total Time of Concentration

Formula

`"t"_{"c"} = "T"_{"i"}+"T"_{"m/f"}`

Example

`"114.22min"="94.78min"+"19.44min"`

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Total Time of Concentration Solution

STEP 0: Pre-Calculation Summary

Formula Used

Time of Concentration = Inlet Time+Channel Flow Time
t_c = T_i+T_m/f
This formula uses 3 Variables

Variables Used

Time of Concentration - (Measured in Second) - Time of Concentration is a concept used in hydrology to measure the response of a watershed to a rain event.
Inlet Time - (Measured in Second) - Inlet Time is the time taken by water to flow overland.
Channel Flow Time - (Measured in Second) - Channel Flow Time is the time taken by water to flow in the drain channel.

STEP 1: Convert Input(s) to Base Unit

Inlet Time: 94.78 Minute --> 5686.8 Second (Check conversion here)
Channel Flow Time: 19.44 Minute --> 1166.4 Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

t_c = T_i+T_m/f --> 5686.8+1166.4

Evaluating ... ...

t_c = 6853.2

STEP 3: Convert Result to Output's Unit

6853.2 Second -->114.22 Minute (Check conversion here)

FINAL ANSWER

114.22 Minute <-- Time of Concentration

(Calculation completed in 00.004 seconds)

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Home » Engineering » Civil » Environmental Engineering » Estimating the Peak Drainage Discharge » Time of Concentration » Total Time of Concentration

Credits

Created by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

Suraj Kumar has created this Calculator and 2200+ more calculators!

Verified by Ishita Goyal

Meerut Institute of Engineering and Technology (MIET), Meerut

Ishita Goyal has verified this Calculator and 2600+ more calculators!

< 6 Time of Concentration Calculators

Length of Overland Flow given Inlet Time

Go Length of Overland Flow = (((Inlet Time)^(1/0.385)*Fall of level)/0.885)^(1/3)

Total Fall of Level from Critical Point to Mouth of Drain given Inlet Time

Go Fall of level = (Length of Overland Flow)^3/((Inlet Time)^(1/0.385)/0.885)

Inlet Time or Time of Equilibrium

Go Inlet Time = (0.885*((Length of Overland Flow)^3/Fall of level))^0.385

Channel Flow Time given Total Time of Concentration

Go Channel Flow Time = Time of Concentration-Inlet Time

Inlet Time given Total Time of Concentration

Go Inlet Time = Time of Concentration-Channel Flow Time

Total Time of Concentration

Go Time of Concentration = Inlet Time+Channel Flow Time

Total Time of Concentration Formula

Time of Concentration = Inlet Time+Channel Flow Time
t_c = T_i+T_m/f

What is Time of Concentration ?

Time of concentration is a concept used in hydrology to measure the response of a watershed to a rain event. It is defined as the time needed for water to flow from the most remote point in a watershed to the watershed outlet. It is a function of the topography, geology, and land use within the watershed.

How to Calculate Total Time of Concentration?

Total Time of Concentration calculator uses Time of Concentration = Inlet Time+Channel Flow Time to calculate the Time of Concentration, The Total Time of Concentration is defined as a concept used in hydrology to measure the response of a watershed to a rain event. Time of Concentration is denoted by t_c symbol.

How to calculate Total Time of Concentration using this online calculator? To use this online calculator for Total Time of Concentration, enter Inlet Time (T_i) & Channel Flow Time (T_m/f) and hit the calculate button. Here is how the Total Time of Concentration calculation can be explained with given input values -> 1.606333 = 5686.8+1166.4.

FAQ

What is Total Time of Concentration?

The Total Time of Concentration is defined as a concept used in hydrology to measure the response of a watershed to a rain event and is represented as t_c = T_i+T_m/f or Time of Concentration = Inlet Time+Channel Flow Time. Inlet Time is the time taken by water to flow overland & Channel Flow Time is the time taken by water to flow in the drain channel.

How to calculate Total Time of Concentration?

The Total Time of Concentration is defined as a concept used in hydrology to measure the response of a watershed to a rain event is calculated using Time of Concentration = Inlet Time+Channel Flow Time. To calculate Total Time of Concentration, you need Inlet Time (T_i) & Channel Flow Time (T_m/f). With our tool, you need to enter the respective value for Inlet Time & Channel Flow Time and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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