Wind Chill Calculator

Estimate wind chill locally for the NWS validity range and compare the result in Fahrenheit and Celsius.

Air temperature

Temperature unit

Wind speed

Wind unit

—NWS validity: air temperature ≤ 50°F and wind speed > 3 mph.

—Celsius

—Fahrenheit

—Wind mph

—Wind km/h

Weather calculations run locally in your browser. These tools transform observations with stated formulas; they do not replace official forecasts, alerts, measurements, or professional field instruments.

How to use this Wind Chill Calculator

Calculate the U.S. National Weather Service wind chill from air temperature and wind speed. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.