Air Enthalpy Calculator

Calculate the total heat content (enthalpy) of moist air for energy analysis and heat exchanger sizing.

Measured air temperature.
°F
Relative humidity percentage.
%
Atmospheric pressure (standard = 14.696).
psia

Results

Humidity Ratio-lb/lb
Enthalpy-BTU/lb
Specific Volume-ft³/lb
Grains of Moisture-grains/lb
References: ASHRAE Fundamentals Chapter 1: Psychrometrics; ASHRAE Psychrometric Chart