How does the Wind Chill Calculator work?

WC = 35.74 + 0.6215T − 35.75V^0.16 + 0.4275T×V^0.16 (°F) Then: WC = 13.12 + 0.6215T − 11.37V^0.16 + 0.3965T×V^0.16 (°C) Then: V = wind speed in mph (or km/h for Celsius formula) Then: Formula valid for T ≤ 50°F (10°C) and V > 3 mph.

Can you give an example of how to use the Wind Chill Calculator?

Example: Input 20°F air temperature, 15 mph wind gives a result of Feels like 6°F — frostbite risk in 30 minutes.

Is the Wind Chill Calculator free to use?

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

How accurate is the Wind Chill Calculator?

Our Wind Chill Calculator uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.

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Wind Chill Calculator

Temp (°F)

Wind (mph)

Wind chill is the perceived decrease in air temperature felt by the body on exposed skin due to wind. Wind accelerates heat loss from the body, making it feel colder than the actual air temperature.

Symbol	Name	Unit	Description
WC	Wind Chill	°F	—
T	Air Temperature	°F	—
V	Wind Speed	mph	—

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Pro Tip

Frostbite can occur in 30 minutes at −20°F (−29°C) wind chill. Cover all exposed skin.

References

›NWS Wind Chill Chart

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Wind Chill Calculator

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