Wind Chill Calculator
Enter temperature and wind speed to get the wind chill feels-like value.
How cold does it really feel?
Wind chill captures how much colder moving air makes a given temperature feel, because wind accelerates heat loss from exposed skin. This calculator applies the official meteorological formula to your temperature and wind speed.
At −5 °C with a 20 km/h wind, it feels like about −10 °C. The effect grows with wind speed and matters for frostbite risk, which is why forecasts quote the wind chill alongside the actual temperature.
Standards-based and private
It uses the North American wind chill equation, valid for cold conditions, and computes the result in your browser with nothing uploaded.
Frequently Asked Questions
What formula is used?
The North American wind chill formula in metric form, valid for temperatures at or below 10 °C and wind above 4.8 km/h.
Why does wind make it feel colder?
Wind strips away the thin layer of warm air next to your skin, speeding heat loss, so it feels colder than the thermometer reads.
Does it work in warm weather?
No — wind chill only applies in the cold. For hot, humid conditions, a heat index is the right measure instead.
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