Wind Chill Calculator

The wind chill temperature can be calculated from real temperature and wind speed. This information is particularly useful for rather low temperatures, below about 10°C, it is a subjective value for the cold sensation. The stronger the wind, the stronger the perceived cold. The humidity does not play a role in the perceived cold temperature, but it does in heat, see the heat index.
Please enter the wind speed and one of the two temperatures, the other temperature will be calculated. The wind speed can be specified in kilometers per hour or in meters per second.

The formula for the calculation is w = 13.12 + 0.6215*t - 11.37*v^0.16 + 0.3965*t*v^0.16
w = wind chill in degrees Celsius, v = wind speed in kilometers per hour, t = real temperature in degrees Celsius

Example: at 5 degrees Celsius and a wind speed of 20 kilometers per hour, the perceived temperature is about 1 degree Celsius.

The perceived temperature is not just a subjective value, but has a connection to reality (in contrast to numerous other perceived "facts"). The feeling of cold indicates the very real danger of cooling down, and this cooling down simply happens faster when there is a wind. The feeling of cold is a warning signal from the body, which is intended to make you avoid it, i.e. to go to a sheltered or warmer place, or to put on appropriate clothing.
Unfortunately, the perceived temperature is not always reliable either. In the case of extreme hypothermia, the body can send out signals that are similar to overheating. Shortly before freezing to death, you seem to get hot and you take off your clothes, which then accelerates the freezing. This is called paradoxical undressing. Of course, you should not let it get that far if possible.

Physics commonly uses SI units. Here is a calculator to convert lengths, temperature, pressure, speed and other units.