Wet Bulb Calculator for HVAC | Chiller Trend
Wet-Bulb Calculator
Estimate outdoor wet-bulb temperature from dry-bulb temperature and relative humidity.
Ambient Conditions
Enter current outdoor conditions.
°F
%
Estimated Wet-Bulb
—°F

Dry-bulb— °F
Relative humidity— %
Method and assumptions
Method
Wet bulb is estimated from dry-bulb temperature and relative humidity using an approximation formula.
Assumptions
Dry-bulb temperature is in °F and relative humidity is from 1% to 100%.
Limit
This is a field estimate, not a replacement for a measured wet-bulb reading.