Wind Chill Calculator
Fill in the values and the answer updates as you type.
How the Wind Chill Calculator works
This uses the North American wind chill index: 13.12 + 0.6215 T − 11.37 v^0.16 + 0.3965 T v^0.16, with T in °C and v in km/h. It is valid only for air temperatures of 10 °C or below and winds above 4.8 km/h, so other values show an error. Wind chill describes heat loss from bare skin. It does not change the actual air temperature, and it does not apply to wet clothing. Example: with Air temperature -5 °C and Wind speed 25 km/h, the result is Wind chill (feels like, °C) = -12.3; Wind chill (feels like, °F) = 9.8; Difference from air temperature (°C) = -7.3.
Inputs and results
The Wind Chill Calculator takes 2 inputs and gives 4 results.
What you enter
- Air temperature (°C) — starts at -5.
- Wind speed (km/h) — starts at 25.
What you get
- Wind chill (feels like, °C)
- Wind chill (feels like, °F)
- Difference from air temperature (°C)
- Frostbite risk on exposed skin
Example: Wind Chill Calculator with the starting values
With air temperature -5 °C and wind speed 25 km/h, the calculator returns:
| Wind chill (feels like, °C) | -12.3 |
|---|---|
| Wind chill (feels like, °F) | 9.8 |
| Difference from air temperature (°C) | -7.3 |
| Frostbite risk on exposed skin | Moderate: dress warmly |
Change any value above and the results update straight away.
Wind Chill Calculator FAQ
How do I use the Wind Chill Calculator?
Enter air temperature and wind speed in the fields, then read wind chill (feels like, °c), wind chill (feels like, °f), difference from air temperature (°c) and frostbite risk on exposed skin in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Wind Chill Calculator calculate?
The feels-like temperature on exposed skin from air temperature and wind. It returns wind chill (feels like, °c), wind chill (feels like, °f), difference from air temperature (°c) and frostbite risk on exposed skin from the 2 values you provide.
What values does the Wind Chill Calculator start with?
It opens with air temperature -5 °C and wind speed 25 km/h so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Wind Chill Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Wind Chill Calculator for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.