Wind Chill Calculator

NWS wind chill from air temperature and wind speed (US °F/mph or metric °C/km/h).

Wind Chill Calculator helps you nWS wind chill from air temperature and wind speed (US °F/mph or metric °C/km/h). Enter air temperature and wind speed, review the breakdown, and use the guidance below to understand what the number means — and what it does not. What the Wind Chill calculator does Wind Chill Calculator is built for everyday questions — shopping, home, travel, hobbies, and tech. NWS wind chill from air temperature and wind speed (US °F/mph or metric °C/km/h). You enter air temperature and wind speed, then Simple Calculators computes the result instantly. Defaults are chosen to be easy to read — change any field to match your situation. How the math works Choose Units (°F and mph, or °C and km/h), then enter the Air temperature and Wind speed. Metric values are converted to °F and mph, and the US National Weather Service formula is applied: wind chill = 35.74 + 0.6215 × T − 35.75 × V^0.16 + 0.4275 × T × V^0.16. The formula only applies at 50 °F (10 °C) or colder with wind of at least 3 mph (about 5 km/h). The formula: Wind chill = 35.74 + 0.6215 × T − 35.75 × V^0.16 + 0.4275 × T × V^0.16. T is the air temperature in °F and V is the wind speed in mph (US National Weathe…