Wind Chill
What cold air really feels like once wind speed is factored in.
Enter values
°C
km/h
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Step by step
The formula
WC = 13.12 + 0.6215T − 11.37v⁰·¹⁶ + 0.3965T·v⁰·¹⁶
Wind chill describes how fast your skin loses heat, not a lower air temperature. Moving air strips away the thin warm layer your body maintains, accelerating heat loss. The effect grows with wind speed but flattens out — doubling the wind does not double the chill.
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Frequently asked questions
How does wind make it feel colder?+
Moving air strips away the thin layer of warmth your body builds around the skin, speeding up heat loss. The stronger the wind, the faster you cool — this is the standard Environment Canada / NWS formula.
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