Meteorological Conversions and Calculations
 
Heat Index Calculator
 
How do we calculate the heat index?
 
Choose the appropriate calculator and enter the values. Then click "Calculate".
 
Using Dew Point Temperature Using Relative Humidity
Air Temperature
 
oF oC
Dew Point Temperature
 
oF oC
 

Heat Index =

  Air Temperature
 
F C
Relative Humidity
%

 

Heat Index =

* Please note: The Heat Index calculation may produce meaningless results for temperatures and dew points outside of the range depicted on the Heat Index Chart linked below.
 
 Heat Index Chart and Explanation

WPC Heat Index Forecasts

More Meteorological Conversions and Calculations