Wind Chill Calculator: calculate the real feel temperature based on air temperature and wind speed instantly for better outdoor preparation. This tool is essential for understanding how the cold feels on human skin when wind speed is added to the ambient temperature. By using the official NWS formula, you can determine the wind chill factor and assess the potential frostbite risk in your current weather conditions.
Our real feel tool applies the 2001 Environment Canada and US National Weather Service standard to ensure accuracy. Below 4.8 km/h (3 mph), wind chill isn’t applied because the cooling effect is negligible. The result is colour-coded against official thresholds, helping you identify when conditions become very cold or reach extreme danger levels. Whether you prefer Celsius or Fahrenheit, this weather calculator provides the precise data you need to stay safe in the cold.
The 2001 Joint Action Group for Temperature Indices formula adopted by Environment Canada and the US National Weather Service: T_wc = 13.12 + 0.6215·T − 11.37·V^0.16 + 0.3965·T·V^0.16 (with T in °C and V in km/h). The Fahrenheit formula uses the equivalent constants in °F and mph.
Below 4.8 km/h (3 mph) wind has negligible cooling effect, so the standard says to report air temperature unchanged. The tool clamps to that rule automatically.
With sustained wind, exposed skin can frostbite in 10–30 minutes around −28 °C and in 5–10 minutes below −40 °C. The colour-coded risk band on the result reflects these official NWS thresholds.
No - the formula runs entirely in your browser. Nothing about your location or temperature is sent anywhere.
Whether you're planning a winter hike or just heading out for a walk, checking the feels like temperature is vital. Bookmark this page for the next time you need an accurate Wind Chill Calculator.