Wind Chill Formula (Metric):
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Wind chill is the perceived decrease in air temperature felt by the body due to the flow of air. It describes how cold it feels when wind is factored in with the actual air temperature.
The calculator uses the UK metric wind chill formula:
Where:
Explanation: The formula calculates how wind speed affects the perception of temperature on exposed human skin.
Details: Wind chill is important for understanding the risk of frostbite and hypothermia during cold weather. It helps in making appropriate clothing choices and weather warnings.
Tips: Enter temperature in °C and wind speed in km/h. Wind speed must be ≥0 km/h. The calculator works best for temperatures below 10°C and wind speeds above 4.8 km/h.
Q1: Why does wind make it feel colder?
A: Wind removes the thin layer of warm air around your skin, increasing heat loss and making it feel colder than the actual temperature.
Q2: At what wind chill does frostbite occur?
A: Frostbite can occur in 30 minutes when wind chill is below -27°C. Risk increases significantly below -35°C.
Q3: Does wind chill affect objects?
A: No, wind chill only affects living things. Objects will cool to the actual air temperature.
Q4: Why is there a minimum wind speed?
A: Below 4.8 km/h, the wind's cooling effect is negligible, so the wind chill equals the actual temperature.
Q5: How accurate is the wind chill formula?
A: It's an estimate based on scientific models of heat loss from human skin. Individual factors like clothing and metabolism affect actual perception.