Dew Point Calculator
How muggy the air feels.
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Weather
Wind Chill Calculator
Enter temperature and wind speed to get the feels-like cold and frostbite risk.
Wind chill
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How cold it feels.
| Wind chill (°C) | — |
|---|---|
| Frostbite risk | — |
| Temperature | — |
| Wind | — |
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Enter your figures above to see the step-by-step working.
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How the Wind Chill Calculator Works
Wind chill is how cold the air feels on exposed skin once wind is taken into account. Moving air strips away the thin warm layer your body maintains, so a 20°F day with a stiff wind can feel well below zero and bring on frostbite far faster.
This calculator uses the official National Weather Service wind chill formula (revised 2001), valid at temperatures of 50°F or below and wind speeds above 3 mph, and flags how quickly frostbite can set in.
wind chill = 35.74 + 0.6215T − 35.75V0.16 + 0.4275T·V0.16
Frequently Asked Questions
What is wind chill?
The “feels-like” temperature in cold weather — how cold exposed skin feels once the wind is accounted for.
When does wind chill apply?
The NWS formula is used at 50°F or colder with wind above 3 mph. In warmer or calm conditions there’s no meaningful wind chill.
How fast can frostbite happen?
At a wind chill near −35°F frostbite can occur within 10 minutes; near −60°F, in about 5 minutes.
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