Wind Chill Calculator
Calculate the wind chill factor and "feels like" temperature based on air temperature and wind speed using the official NWS formula.
Top Cities
Top cities where Wind Chill calculations are checked
Top Countries
Top countries where Wind Chill calculations are checked
Calculation Statistics
See how many Wind Chill calculations have been made over time
Understanding Wind Chill
What is Wind Chill?
Wind chill is the perceived decrease in air temperature felt by the body due to the flow of air. The wind increases heat loss from exposed skin, making it feel colder than the actual temperature.
The NWS Formula
We use the official National Weather Service formula: Wind Chill = 35.74 + 0.6215T - 35.75(V^0.16) + 0.4275T(V^0.16), where T is temperature in °F and V is wind speed in mph.
Frostbite Risk
-10°F to -24°F: Frostbite in 30 min
-25°F to -39°F: Frostbite in 10-15 min
-40°F or below: Frostbite in 5 min
Safety Tips
Dress in layers, cover exposed skin, wear windproof outer layers, and limit time outdoors when wind chill is dangerous. Watch for signs of frostbite and hypothermia.
Wind Chill Calculator Guides & Articles
How to Dress for Extreme Cold
Learn the layering system and best materials to protect yourself when wind chill temperatures drop dangerously low.
Understanding Frostbite Prevention
Discover the warning signs of frostbite and hypothermia, and learn how to protect yourself in severe winter conditions.
Wind Chill vs Actual Temperature
Understand why wind chill matters more than actual temperature for outdoor safety and activity planning.
Frequently Asked Questions
Wind chill temperature is the perceived air temperature felt on exposed skin due to wind. It describes how cold it actually feels when wind is factored into the equation.
Wind chill becomes dangerous when it drops below -18°F (-28°C). At these temperatures, frostbite can occur on exposed skin in as little as 30 minutes.
No, wind chill only affects living things. Objects like cars or pipes will only cool to the actual air temperature, not the wind chill temperature.
The NWS wind chill formula is accurate for temperatures at or below 50°F and wind speeds above 3 mph. It's based on scientific research and human trials.