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Wind Chill Calculator

🌬️Wind Chill Calculator

Temperature (°C)

Must be ≤ 10°C / 50°F

Wind speed (km/h)

Musí byť > 4,8 km/h

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Detailed Guide Coming Soon

We're working on a comprehensive educational guide for the Wind Chill Calculator in your language. The content below is shown in English.

What is Wind Chill Calculator?

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Wind chill is the perceived decrease in air temperature felt by exposed skin due to the flow of air. Wind accelerates heat loss from the body — the faster the wind, the colder it feels, even if the actual temperature is unchanged.

Calkulon makes complex calculations simple — built for students and everyday problem-solvers.

How to Wind Chill Calculator

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1The Environment Canada / NWS formula: WC = 13.12 + 0.6215T − 11.37V^0.16 + 0.3965TV^0.16
2T = air temperature (°C), V = wind speed (km/h)
3Only applies when temperature is below 10°C (50°F) and wind speed > 4.8 km/h
4Human skin temperature is used as the reference (33°C / 91°F)

Worked Examples

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Example 1

Given:−10°C with 30 km/h wind

Výsledok:Feels like −20°C

Wind doubles the effective cold

Example 2

Given:5°F with 20 mph wind

Výsledok:Feels like −15°F

Frostbite risk in 30 minutes

Wind Chill Risk Levels (°C)

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Feels Like (°C)	Risk	Frostbite time
0 to −9	Low	No risk
−10 to −27	Moderate	Exposed skin can freeze in 10–30 min
−28 to −39	High	Frostbite in 10–30 min
−40 to −47	Very High	Frostbite in 5–10 min
−48 to −54	Severe	Frostbite in 2–5 min
Below −55	Extreme	Frostbite in < 2 min

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Pro Tip

Cover all exposed skin in severe wind chill. Frostbite can occur on the cheeks, nose, ears, and fingers even during brief exposure when wind chill is below −27°C.

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Did you know?

The wind chill formula used today was updated in 2001 by Environment Canada and the US NWS after the original 1940s formula (developed by Antarctic researchers Siple and Passel) was found to overestimate coldness.

References

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Wind Chill Calculator