Weather/Unit Conversion Calculator

Use the tools below to perform a variety of weather and unit conversion calculations. Type in a value or values and then click on the appropriate button to perform the calculation. Origional javascript code written by Ron Moore of the Birmingham, AL NWS office.


Temperature Conversions

Fahrenheit (°F )
Celsius (°C)
Celsius (°C )
Fahrenheit (°F)

Windchill Calculations

Temp (°F)
Wind Speed (mph)
Wind chill =
Temp (°C)
Wind Speed (mph)
Wind chill =

Relative Humidity Calculations

Temp (°F)
Dew point (°F)
Relative Humidity =
Temp (°C)
Dew point (°C)
Relative Humidity =

Heat Index Calculations

Temp (°F)
Dew point (°F)
Heat Index =   RH =
Temp (°C)
Dew point (°C)
Heat Index =   RH =
Temp (°F)
Relative Humidity (%)
Heat Index =   Dew Point =
Temp (°C)
Relative Humidity (%)
Heat Index =   Dew Point =