Wind Chill Miniräknare
Calculate wind chill (feels-like temperature in cold weather), or reverse-solve for temperature or wind speed. Includes frostbite risk categories.
Kalkylera
Choose a calculation type, enter your values, and click Calculate Now to see wind chill results with risk categories and step-by-step solutions.
Resultat
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Steg-för-steg lösning
Komplett användarhandbok
Vad är Wind Chill?
Wind chill is the perceived decrease in air temperature felt by the body on exposed skin due to air flow. Wind increases the rate of heat loss from the body, making the temperature feel colder than the actual air temperature. The NWS Wind Chill Index uses a formula based on advances in science, technology, and computer modelling to provide an accurate way to measure cold-weather risk.
NWS Wind Chill Formula
WC = 35.74 + 0.6215×T − 35.75×V0.16 + 0.4275×T×V0.16
Where T = air temperature (°F), V = wind speed (mph)
Gäller när T ≤ 50 °F och V ≥ 3 mph
3 Calculation Types
Vindkyla
Enter air temperature and wind speed. Get feels-like temperature + risk.
Temperature from WC
Enter wind chill and wind speed. Finds actual air temperature.
Wind Speed from WC
Enter wind chill and temperature. Finds wind speed using iterative solving.
Wind Chill Risk Categories
| Wind Chill (°F) | Kategori | Effect |
|---|---|---|
| ≥ 32 | Liten fara | Little danger for properly clothed person. |
| 0 – 31 | Försiktighet | Risk of hypothermia with prolonged exposure. |
| −1 – −20 | Fara | Exposed skin can freeze in 10 minutes. |
| −21 – −40 | High Danger | Exposed skin can freeze in 5 minutes. |
| < −40 | Extrem fara | Exposed skin can freeze in under 2 minutes. |
Viktiga anmärkningar
- Wind chill only applies when T ≤ 50 °F (10 °C) and V ≥ 3 mph.
- Wind chill only affects exposed skin, not inanimate objects.
- Dress according to wind chill, not just air temperature.
- Vindhastighetsenheter som stöds: mph, km/h, m/s.