Wind Chill Calculator

Calculate the wind chill factor based on temperature and wind speed. Wind chill is the perceived decrease in air temperature felt by the body due to the flow of air.

Wind Chill Results

Wind Chill Temperature:

About Wind Chill

Wind chill is the perceived decrease in air temperature felt by the body on exposed skin due to the flow of air. Wind chill numbers are always lower than the actual air temperature for values where the formula is valid. When the apparent temperature is higher than the air temperature, the heat index is used instead.

How to Use This Calculator

Follow these simple steps to calculate wind chill:

Enter the air temperature (in °C or °F)
Enter the wind speed (in km/h or mph)
Click "Calculate Wind Chill" to see the result
The result shows how cold it feels to the human body

Wind Chill Formula

The wind chill formula used in this calculator is the North American and UK standard:

Metric (°C, km/h): Wind Chill = 13.12 + 0.6215×T - 11.37×V^0.16 + 0.3965×T×V^0.16

Imperial (°F, mph): Wind Chill = 35.74 + 0.6215×T - 35.75×V^0.16 + 0.4275×T×V^0.16

Where T is the air temperature and V is the wind speed.

Wind Chill Chart

The chart above shows how wind chill varies with different combinations of temperature and wind speed. Faster winds and lower temperatures create more dangerous wind chill conditions.

Wind Chill Effects

Understanding wind chill is important for:

Outdoor Safety: Helps prevent frostbite and hypothermia
Winter Sports: Essential for skiers, snowboarders, and winter athletes
Daily Activities: Dressing appropriately for the weather
Weather Forecasting: Provides more accurate "feels like" temperatures

Limitations

The wind chill formula has some limitations:

Only valid for temperatures at or below 10°C (50°F) and wind speeds above 4.8 km/h (3 mph)
Doesn't account for sunlight, humidity, or individual metabolism
Calculated for exposed skin at face level (5 feet above ground)