Calculate
Wind Chill
Temperature

To calculate the apparent wind chill temperature, please enter a number in both Wind and Temperature fields, then click outside the text box. Pressing the tab key to move between entries also works. The following wind chill calculation requires the temperature to be given in Fahrenheit. Convert from Celsius to Fahrenheit if necessary.

Wind Speed (mph): Temperature(F): Apparent Temp(F):

Temperature Conversion (Celsius to Fahrenheit)
Enter a number in either field, then click outside the text box.

C: F:

Wind Chill Factor Table ref: NOAA Windchill

Windchill Chart

Explanation
The wind-chill temperature is a measure of relative discomfort due to combined cold and wind. It was developed by Siple and Passel (1941) and is based on physiological studies of the rate of heat loss for various combinations of ambient temperature and wind speed. The wind-chill temperature equals the actual air temperature when the wind speed is 4 mph or less. At higher wind speeds, the wind-chill temperature is lower than the air temperature and measures the increased cold stress and discomfort associated with wind.

The effects of wind-chill depend strongly on the amount of clothing and other protection worn as well as on age, health, and body characteristics. Wind-chill temperatures near or below 0 F indicate that there is a risk of frostbite or other injury to exposed flesh. The risk of hypothermia from being inadequately clothed also depends on the wind-chill temperature.

Use calculations on this page at your own risk. The author accepts no liability for the content, quality or completeness of any data posted on this page, or for the consequences of any actions taken on the basis of the information provided.