Percentage Humidity Calculator

✖Absolute Humidity is the actual amount of water vapor present in the air, regardless of the temperature.ⓘ Absolute Humidity [AH]			+10% -10%
✖Saturation Humidity is defined as the absolute humidity of vapour-gas mixture at 100% saturation.ⓘ Saturation Humidity [H_s]			+10% -10%

✖Percentage Humidity is defined as the ratio of absolute humidity to the saturation humidity.ⓘ Percentage Humidity [%H]

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Formula

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Percentage Humidity

Formula

`"%H" = ("AH"/"H"_{"s"})*100`

Example

`"12"=("0.6kg/kg of air"/"5")*100`

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Percentage Humidity Solution

STEP 0: Pre-Calculation Summary

Formula Used

Percentage Humidity = (Absolute Humidity/Saturation Humidity)*100
%H = (AH/H_s)*100
This formula uses 3 Variables

Variables Used

Percentage Humidity - Percentage Humidity is defined as the ratio of absolute humidity to the saturation humidity.
Absolute Humidity - (Measured in Kg of water vapour per Kg of air) - Absolute Humidity is the actual amount of water vapor present in the air, regardless of the temperature.
Saturation Humidity - Saturation Humidity is defined as the absolute humidity of vapour-gas mixture at 100% saturation.

STEP 1: Convert Input(s) to Base Unit

Absolute Humidity: 0.6 Kg of water vapour per Kg of air --> 0.6 Kg of water vapour per Kg of air No Conversion Required
Saturation Humidity: 5 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

%H = (AH/H_s)*100 --> (0.6/5)*100

Evaluating ... ...

%H = 12

STEP 3: Convert Result to Output's Unit

12 --> No Conversion Required

FINAL ANSWER

12 <-- Percentage Humidity

(Calculation completed in 00.004 seconds)

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Home » Engineering » Chemical Engineering » Mass Transfer Operations » Humidification & Dehumidification » Basics of Humidification Process » Percentage Humidity

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Created by Ayush gupta

University School of Chemical Technology-USCT (GGSIPU), New Delhi

Ayush gupta has created this Calculator and 300+ more calculators!

Verified by Soupayan banerjee

National University of Judicial Science (NUJS), Kolkata

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< 19 Basics of Humidification Process Calculators

Temperature based on Absolute Humidity and Humid Volume

Go Temperature of Air = ((273.15*(Humid Volume of Air/22.4))/((1/28.97)+(Absolute Humidity/18.02)))-273.15

Humid Volume based on Absolute Humidity and Temperature

Go Humid Volume of Air = ((1/28.97)+(Absolute Humidity/18.02))*22.4*((Temperature of Air+273.15)/273.15)

Absolute Humidity based on Humid Volume and Temperature

Go Absolute Humidity = 18.02*((Humid Volume of Air/22.4)*(273.15/(Temperature of Air+273.15))-(1/28.97))

Saturation Humidity based on Vapor Pressure

Go Saturation Humidity = (0.6207)*(Vapour Pressure of Water at DBT/(1-Vapour Pressure of Water at DBT))

Absolute Humidity based on Weight of Air

Go Absolute Humidity = (Weight of Water Vapour/Weight of Bone Dry Air)

Absolute Humidity based on Percentage and Saturation Humidity

Go Absolute Humidity = (Percentage Humidity/100)*Saturation Humidity

Saturation Humidity based on Percentage and Absolute Humidity

Go Saturation Humidity = Absolute Humidity*(100/Percentage Humidity)

Weight of Water Vapour based on Absolute Humidity

Go Weight of Water Vapour = Absolute Humidity*Weight of Bone Dry Air

Weight of Air based on Absolute Humidity

Go Weight of Bone Dry Air = Weight of Water Vapour/Absolute Humidity

Percentage Humidity

Go Percentage Humidity = (Absolute Humidity/Saturation Humidity)*100

Molal Humidity based on Moles of Air and Water

Go Molal Humidity = Moles of Water Vapour/Moles of Bone Dry Air

Moles of Water Vapour based on Molal Humidity

Go Moles of Water Vapour = Molal Humidity*Moles of Bone Dry Air

Moles of Air based on Molal Humidity

Go Moles of Bone Dry Air = Moles of Water Vapour/Molal Humidity

Mixing Ratio on Basis of Specific Humidity

Go Mixing Ratio = Specific Humidity/(1-Specific Humidity)

Specific Humidity on Basis of Mixing Ratio

Go Specific Humidity = Mixing Ratio/(1+Mixing Ratio)

Absolute Humidity based on Humid Heat

Go Absolute Humidity = (Humid Heat-1.006)/1.84

Absolute Humidity on Basis of Molal Humidity

Go Absolute Humidity = 0.6207*Molal Humidity

Molal Humidity based on Absolute Humidity

Go Molal Humidity = Absolute Humidity/0.6207

Humid Heat based on Absolute Humidity

Go Humid Heat = 1.005+1.88*Absolute Humidity

Percentage Humidity Formula

Percentage Humidity = (Absolute Humidity/Saturation Humidity)*100
%H = (AH/H_s)*100

What is Absolute & Saturation Humidity?

Absolute humidity is a measure of the actual amount of water vapor present in a unit volume of air, usually expressed in grams per cubic meter (g/m³) or grains per cubic foot (gr/ft³). It provides a direct measurement of the quantity of water vapor in the air, regardless of temperature.

Saturation humidity is the maximum amount of water vapor air can hold at a given temperature and pressure.

What is Humidification Process?

The humidification process involves adding moisture to indoor air to increase its relative humidity. It begins by measuring the current humidity level using a hygrometer. A desired humidity level is set, typically between 30% and 60%. Different humidification methods like evaporative, steam, or ultrasonic are chosen based on space requirements. The humidifier, often equipped with a humidistat, is then operated to release moisture. As the humidifier maintains the setpoint, it continuously monitors and controls humidity levels. Regular maintenance is essential to prevent issues and ensure safe and effective operation, especially in dry environments or during winter when indoor heating can dry out the air.

How to Calculate Percentage Humidity?

Percentage Humidity calculator uses Percentage Humidity = (Absolute Humidity/Saturation Humidity)*100 to calculate the Percentage Humidity, The Percentage Humidity formula is defined as the ratio of Absolute Humidity to the Saturation Humidity. The ratio of the weight of water vapor in a pound of dry air to the weight of water vapor that would be present if the same weight of air were saturated. Percentage Humidity is denoted by %H symbol.

How to calculate Percentage Humidity using this online calculator? To use this online calculator for Percentage Humidity, enter Absolute Humidity (AH) & Saturation Humidity (H_s) and hit the calculate button. Here is how the Percentage Humidity calculation can be explained with given input values -> 12 = (0.6/5)*100.

FAQ

What is Percentage Humidity?

The Percentage Humidity formula is defined as the ratio of Absolute Humidity to the Saturation Humidity. The ratio of the weight of water vapor in a pound of dry air to the weight of water vapor that would be present if the same weight of air were saturated and is represented as %H = (AH/H_s)*100 or Percentage Humidity = (Absolute Humidity/Saturation Humidity)*100. Absolute Humidity is the actual amount of water vapor present in the air, regardless of the temperature & Saturation Humidity is defined as the absolute humidity of vapour-gas mixture at 100% saturation.

How to calculate Percentage Humidity?

The Percentage Humidity formula is defined as the ratio of Absolute Humidity to the Saturation Humidity. The ratio of the weight of water vapor in a pound of dry air to the weight of water vapor that would be present if the same weight of air were saturated is calculated using Percentage Humidity = (Absolute Humidity/Saturation Humidity)*100. To calculate Percentage Humidity, you need Absolute Humidity (AH) & Saturation Humidity (H_s). With our tool, you need to enter the respective value for Absolute Humidity & Saturation Humidity 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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