Psychrometric Calculator

Pick a unit system, enter dry bulb temperature and pressure, choose a second value, and read the moist-air properties. Updates as you type.

Inputs

Dry bulb temperature

°F

Atmospheric pressure

psia

Second value

Relative humidity

Formulas after Meyer et al. (2019), PsychroLib, JOSS 4(33):1137. Re-implemented for this site.