Absolute Humidity to Relative Humidity Calculator

Online calculator to convert Absolute Humidity to Relative Humidity from the known values.

Convert Absolute Humidity to Relative Humidity

°C
gm/m3
gm/m3
%
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Formula :

Actual vapor density
Relative Humidity =
* 100%
Saturation vapor density

Saturation vapor density :

mM

=
* ps(t)
VRT
Where,

m/V = density of water vapor, grams / ( cubic meters ) M = 18 grams/mol of water R = 0.0623665 mmHg x m3 / °C / mol T = 273.15 + Air Temperature ps = ps(t°C) = ( 0.61078 * 7.501 ) e ( 17.2694t / 238.3+t ) mmHg

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