Enter in the air temperature (Tair) and dew point temperature (Tdp) in degrees Fahrenheit (oF) or Celcius (oC, second row), then click "Calc RH" to compute the relative humidity (RH).
Tair oF
Tdp oF
Tair oC
Tdp oC
Relative Humidity Calculator
Enter in the air temperature (Tair) and dew point temperature (Tdp) in degrees Fahrenheit (oF).
Enter in the air temperature (Tair) in degrees Fahrenheit and relative humidity (RH) in percent (without the % sign), then click on the Calculate HI to compute the heat index (HI) | Use the heat index tables
Tair
RH
HI=
OR use dew point temperature
Tair
Tdp
HI=
Heat Index Calculation
Enter in the air temperature (Tair) in degrees Fahrenheit and relative humidity (RH) in percent (without the % sign), then click on the Calculate HI to compute the heat index (HI) | Use the heat index tables