Wind Chill Calculator
Calculate wind chill from air temperature and wind speed.
Runs 100% in your browser — nothing is uploaded.
Result
Formula
WCT = 13.12 + 0.6215T − 11.37v^0.16 + 0.3965T·v^0.16 (°C, km/h)
About this calculator
The Wind Chill Calculator estimates the perceived temperature on exposed skin when wind is combined with cold air, helping users assess cold-weather risks and plan appropriate clothing or activities.
How to use
- 1
Enter the air temperature in °C in the 'Air temperature' field.
- 2
Enter the wind speed in km/h in the 'Wind speed' field.
- 3
Read the wind chill value, equivalent in °F, and risk level from the results.
Frequently asked questions
What is wind chill?
Wind chill is the perceived decrease in air temperature felt by the body on exposed skin due to the flow of air. It is not the actual air temperature but an apparent temperature that accounts for the increased rate of heat loss from the body.
Why is wind chill not calculated for temperatures above 10°C?
The standard wind chill formula is only valid for temperatures at or below 10°C. At higher temperatures, the cooling effect of wind is less significant and other factors like humidity become more important, so the formula is not applied.
What does the risk level mean?
The risk level indicates the potential for frostbite on exposed skin. 'Low risk' means minimal danger, 'Moderate risk' means frostbite is possible with prolonged exposure, 'High risk' means frostbite can occur in under 30 minutes, and 'Extreme' means frostbite can occur in minutes.
Please note: Results are estimates for general information only and are not professional or medical/financial advice.