Psychrometric Chart Calculator

Humid Air
Psychrometric Chart
Altitude
Atmospheric Pressure
P
Dry-bulb Temperature
Tdb
Wet-bulb Temperature
Twb
Relative Humidity
RH
Dew Point Temperature
Tdp
Humidity Ratio
W
Enthalpy
Hda
Specific Volume
Vda
0.858
m³/kg_da
Entropy
Sda
0.181
kJ/kg_da·K
Water Mole Fraction
psi_w
0.016
-
Learn

Disclaimer

This tool is provided "as is", without warranty of any kind. Results may be inaccurate, incomplete, or out of date. Do not use for safety-critical, compliance, or life-support decisions. You are responsible for validating outputs and assumptions.

© 2026 FluidTool. All rights reserved.