Wind Chill Calculator
Calculate the feels-like temperature from air temperature and wind speed
Air Temperature
°C
Wind Speed
km/h
Formula Notes
Wind chill applies when temperature ≤ 10°C (50°F) and wind speed ≥ 4.8 km/h (3 mph). Uses the 2001 North American / UK / Australian standard formula.
Wind Chill
Feels Like (°C)
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Feels Like (°F)
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Risk Level
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What is Wind Chill?
Wind chill is the perceived decrease in air temperature felt by the human body due to wind. Moving air speeds up heat loss from exposed skin through convection. The stronger the wind, the faster warm air near the skin is replaced by cold air, making it feel colder.
The formula used here is the 2001 Joint Action Group for Temperature Indices (JAG/TI) standard: WC = 13.12 + 0.6215T − 11.37V⁰·¹⁶ + 0.3965T×V⁰·¹⁶ (T in °C, V in km/h). At −40°C with 60 km/h winds, frostbite can occur in under 10 minutes.
lightbulb Example
Temp: −10°C, Wind: 30 km/h
1V⁰·¹⁶ = 30⁰·¹⁶ ≈ 1.762
2WC = 13.12 + (−6.215) − 20.03 + (−6.97)
✓ Feels like −20°C — moderate risk