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Calculate the feels-like wind chill index based on air temperature and wind speed, assess frostbite risks, and get safety recommendations.
Adjust parameters to see results
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When cold winds blow, the actual air temperature often fails to reflect how cold it truly feels. The Wind Chill Calculator uses a scientific model combining air temperature and wind speed data to calculate the Wind Chill Index. This metric quantifies the drop in the 'feels like' temperature caused by accelerated heat loss from human skin in windy and cold environments. For example, an air temperature of -5°C with a wind speed of 30 km/h can result in a feels-like temperature as low as -12.5°C, significantly increasing the risk of frostbite.
Does the wind chill calculation factor in humidity?
No. The standard wind chill index model is based solely on air temperature and wind speed. The effect of humidity on the feels-like temperature is measured by a different metric known as the Heat Index.
At what wind speed does the wind chill effect begin?
The wind chill effect becomes noticeable when wind speeds exceed 5 km/h (about 3 mph). The higher the wind speed, the more significant the drop in the feels-like temperature.
The input range for temperature is -100°C to 150°C, and the wind speed range is 0 to 500. Calculation results are for reference only. Actual risks should be evaluated based on individual physical condition, clothing thickness, and exposure time. In extreme cold environments, please rely on professional weather warnings.
The wind chill calculation uses the standard North American formula: WCI = 13.12 + 0.6215T - 11.37V^0.16 + 0.3965T·V^0.16 (where T is the air temperature in °C, and V is the wind speed in km/h). Typical example: An air temperature of -10°C combined with a wind speed of 20 km/h results in a wind chill index of approximately -15°C, meaning exposed skin could suffer frostbite within 30 minutes. We recommend outdoor workers prioritize the wind chill index over the actual air temperature.
