Wind Chill Calculator
Calculate the wind chill temperature using the official NWS formula. Assess frostbite risk based on conditions.
Inputs
Results
Feels Like
6.2°F
How to Use This Calculator
- Enter the Air Temperature in °F.
- Set the Wind Speed in mph.
- Review the Wind Chill (Feels Like) temperature in °F and °C, Temperature Drop, and Frostbite Risk level.
- At Danger level (feels like -19°F or colder), frostbite can occur on exposed skin in under 30 minutes.
How the result changes with Temperature
| Temperature | Feels Like |
|---|---|
| -49 | -82.2°F |
| -21 | -46.3°F |
| 12 | -4°F |
| 39 | 30.6°F |
What each input means
- Temperature
- Temperature in the selected unit.
- Wind Speed
- Current wind speed.
How this is calculated
Worked example, using the default values
- Identify Input ParametersTemperature = 20, Wind Speed = 15 = 2 input(s) provided
- Calculate Feels LikeFeels Like6.2 = 6.2
- Calculate Feels LikeFeels Like-14.3 = -14.3
- Calculate Temperature DropTemperature Drop = round((tempF - windChillF) * 10) / 1013.8 = 13.8
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