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Temperature Conversion
Enter a number then click on the appropriate number to see the result.
Fahrenheit (F)

 

 

Celsius (C)

This section has been discontinued. Please go here for a chart and calculator - Wind Chill Chart.

Relative Humidity Calculation using degrees Fahrenheit

Enter in the air temperature ( Tair ) and dew point temperature ( Tdp) in degrees Fahrenheit ( °CF ) then click on the Calculate RH to compute the relative humidity ( RH ).
Tair in °F Tdp in °F RH
Tair
Tdp

 

 

Relative Humidity Calculation using degrees Celsius

Enter in the air temperature ( Tair ) and dew point temperature ( Tdp) in degrees Celsius ( °CF ) then click on the Calculate RH to compute the relative humidity ( RH ).
Tair in °C Tdp in °C RH
Tair
Tdp

This section has been discontinued. Please go here for a chart and over here for a calculator.

 

Additional Information

  • Fahrenheit - The standard scale used to measure temperature in the United States. On this scale, the freezing point of water is 32°F and the boiling point is 212°F. To convert a Celsius temperature to Fahrenheit, multiply it by 9/5 and then add 32: °F = (°C * 9/5) + 32
  • Celsius - The standard scale used to measure temperature in most areas outside the United States. On this scale, the freezing point of water is 0°C and the boiling point is 100°C. To convert a Fahrenheit temperature to Celsius, subtract 32 from it and then multiply by 5/9: °C = (°F - 32) * 5/9
  • Relative Humidity - A dimensionless ratio, expressed in percent, of the amount of atmospheric moisture present relative to the amount that would be present if the air were saturated. Since the latter amount is dependent on temperature, relative humidity is a function of both moisture content and temperature. As such, relative humidity by itself does not directly indicate the actual amount of atmospheric moisture present. In this application the equation below is used where T is the air temperature in Celsius and the Td is the dew point temperature in Celsius.

RH equation.