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Wind Chill Calculator and Equations

Engineering Calculators

Wind-chill or windchill, (popularly wind chill factor) is the perceived decrease in air temperature felt by the body on exposed skin due to the flow of air.

Wind chill numbers are always lower than the air temperature for values where the formula is valid. When the apparent temperature is higher than the air temperature, the heat index is used instead.

A measure of the cooling effect of wind. Wind increases the rate at which a body loses heat, so the air on a windy day feels cooler than the temperature indicated by a thermometer. This heat loss can be calculated for various combinations of wind speed and air temperature and then converted to a wind chill equivalent temperature (or wind chill factor).

Where:

Where T = Air Temperature (F)
V = Wind Speed (mph)

Notes:

Wind Chill is defined for temperatures within the range -45oF to +45oF and wind speeds 3 to 60 mph. Wind Chill temperature only will not cause water to freeze. Water will only freeze when the waters temperature reaches the freezing point.

Wind Chill Calculator

Temperature F° (deg) =

(-45 min 45 max)

   

Wind Speed (mph) =

(3 min 60 max)

   

Wind Chill F(deg) =

Automatic recalculation 

Wind Reference Chart

Wind Chill Reference Chart

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