COMMENTS FROM THE AUTHOR:
The following is a JavaScript Exercise and though it has been tested no guarantees regarding the accuracy of the calculations are made.

Calculating Wind Chill Factor

Imperial - OLD

ENTER THE COEFFICENTS IN APPROPRIATE BOXES   
Temperature (°F) Wind Speed (M.P.H.) Wind Chill (°F)

Imperial - NEW!

ENTER THE COEFFICENTS IN APPROPRIATE BOXES   
Temperature (°F) Wind Speed (M.P.H.) Wind Chill (°F)

Please Note: The calculator should not be used for outside air temperatures greater that 50 °F (10 °C ) and wind speeds less than 4 MPH (6.5 Km/hr).