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Calculators / Science / Wind chill
Wind chill calculator
Estimate wind-chill temperature using the Canadian/US Celsius-km/h equation.
On this page
Wind chill-13°C
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How to calculate
Estimate wind-chill temperature using the Canadian/US Celsius-km/h equation.
Wind chill = 13.12+0.6215*temp-11.37*wind^0.16+0.3965*temp*wind^0.16
Worked example
Air temperature (°C): -5; Wind speed (km/h): 30.
Wind chill: -13 °C.
Assumptions and limits
The standard formula is intended for cold temperatures and wind measured at a standard height. It is not a frostbite diagnosis.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Estimate wind-chill temperature using the Canadian/US Celsius-km/h equation. The displayed figures use the inputs and formula shown on this page.
When this tool is useful
Use the wind chill to compare a scenario, check an estimate, or verify a manual calculation.
Understanding your inputs
| Input | What to enter |
|---|---|
| Air temperature (°C) | Enter a number of at least -100 and no more than 50. |
| Wind speed (km/h) | Enter a number of at least 4.8 and no more than 300. |
Frequently asked questions
What should I check before using the wind chill result?
The standard formula is intended for cold temperatures and wind measured at a standard height. It is not a frostbite diagnosis.
Is this wind chill result exact?
It is exact for the stated mathematical model and entered values. Real-world results can differ when rates, timing, fees, definitions or measurement conditions differ.