Thực tế

Wind Chill Calculator

Đơn vị:

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.

Là gì 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.

Công thức

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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

Chú giải biến

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Ký hiệu	Tên	Đơn vị	Mô tả
WC	Wind Chill	°F	—
T	Air temperature	°F	—
V	Wind speed	mph	—

Cách 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

Ví dụ có lời giải

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Ví dụ 1

Cho trước:Temperature −10°C, wind 40 km/h

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

Ứng dụng thực tế

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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

Câu hỏi thường gặp

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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.

Tài liệu tham khảo

›Wind chill — Environment and Climate Change Canada

Formula-verified for precision

Reviewed October 2026

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Wind Chill Calculator