Calculate air properties including dew point, enthalpy, and humidity ratio.
Air State
Calculation Results
Enter T, RH and Pressure
About this calculator
Overview
Psychrometrics is the study of physical and thermodynamic properties of gas-vapor mixtures (moist air). This is fundamental for HVAC systems and meteorology.
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Pro Tips
Dew point is the temperature at which air becomes saturated (100% RH).
Enthalpy measures the total heat content (sensible + latent) of air.
As air temperature rises, its capacity to hold water vapor increases exponentially.
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Fun Facts
"Relative humidity tells you how close air is to saturation, NOT the absolute amount of water."
"Vapor pressure is the partial pressure exerted by water molecules in the air."
"100% RH feels warmer in summer because sweat cannot evaporate to cool your body."
