实用工具

Wind Chill Calculator

风寒计算器

单位:

Temperature (°C)

Wind Speed (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.

是什么 Wind Chill Calculator?

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

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

公式

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f(x)WC (°F) = 35.74 + 0.6215×T − 35.75×(V^0.16) + 0.4275×T×(V^0.16), where T=°F, V=mph

变量说明

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符号	名称	单位	描述
WC	Wind Chill	°F	—
T	Air temperature	°F	—
V	Wind speed	mph	—

如何 Wind Chill Calculator

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1Wind chill (°C) = 13.12 + 0.6215T − 11.37V^0.16 + 0.3965T×V^0.16
2T = air temperature (°C); V = wind speed (km/h)
3Only meaningful when T < 10°C and V > 4.8 km/h
4Wind speeds above 80 km/h have diminishing additional effect

例题解析

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示例 1

已知:Temperature −10°C, wind 40 km/h

结果:Wind chill = 13.12 + 0.6215×(−10) − 11.37×40^0.16 + 0.3965×(−10)×40^0.16 ≈ −20°C

实际应用

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Winter weather advisory issuance

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Outdoor activity safety (hiking, sports)

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Occupational health (outdoor workers)

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Frostbite risk assessment

Wind Chill Reference Chart (°C)

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Temp	10 km/h	20 km/h	40 km/h	60 km/h
-5	-10	-13	-15	-17
-10	-15	-19	-22	-25
-15	-21	-26	-30	-33
-20	-27	-33	-38	-41

常见问题

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Is wind chill real or just perceived?

Real: wind accelerates heat loss from exposed skin. Doesn't change actual air temperature, but speeds freezing.

What wind chill is dangerous?

Below −15°F: frostbite possible in 30 min. Below −25°F: frostbite in 10 min. Below −35°F: frostbite in <5 min.

How fast does wind speed need to be for wind chill?

3 mph minimum for meaningful effect. Higher speeds = greater wind chill. Wind chill maxes out around 60 mph.

参考资料

›Wind chill — Environment and Climate Change Canada

Formula-verified for precision

Reviewed October 2026

Our methodology

Ratings & comments

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