Wind removes the thin layer of warm air around your skin, so you lose heat faster and feel colder.
How to use the Wind Chill Calculator
- Air temperature
- Wind speed
Results update as you type, and every field accepts the units shown in its menu.
How it works
The formula combines temperature and wind speed measured at 10 m height.
Inputs explained
| Field | What to enter |
|---|---|
| Air temperature | Units: °C, °F, K |
| Wind speed | Units: km/h, mph, m/s |
Example values
How the main result changes when Air temperature changes and everything else stays at the example values above:
| Air temperature (°C) | Wind chill (°C) |
|---|---|
| -2.5 | -9.7 |
| -3.75 | -11.4 |
| -5 | -13 |
| -6.25 | -14.6 |
| -7.5 | -16.3 |
| -10 | -19.5 |
Formula
WC = 13.12 + 0.6215T − 11.37V^0.16 + 0.3965T·V^0.16 (T °C, V km/h)Worked example
Inputs — Air temperature: -5 °C; Wind speed: 30 km/h.
Results — Wind chill = -13 °C.
Frequently asked questions
Can wind chill freeze water?
No, objects cannot cool below the actual air temperature.
Why is wind measured at 10 m?
It is the standard height for weather stations.
What formula does the Wind Chill Calculator use?
WC = 13.12 + 0.6215T − 11.37V^0.16 + 0.3965T·V^0.16 (T °C, V km/h).