What is the Wind Chill Calculator?
Calculate wind chill temperature from air temperature and wind speed. These physics and science calculators apply standard SI formulas with exact constants (such as g = 9.80665 m/s² and the 2019 SI definitions) for students, engineers and curious minds.
How to use the Wind Chill Calculator
- Enter your air temperature, your wind speed.
- Results update automatically as you type; you can also press Calculate.
- Read the output: wind chill, in celsius.
- Use the 📊 chart to see the result visually, then copy or share it.
Formula and method
Worked example
With air temperature = 20 °F, wind speed = 15 mph, the Wind Chill Calculator returns wind chill: 6.2 °F; in celsius: -14.3 °C.
Tips for better results
- Convert inputs into SI units first for the cleanest results.
- Idealized formulas ignore friction and air resistance unless stated.
- Use our unit converters to switch between metric and imperial results.
Frequently asked questions
What does the Wind Chill Calculator do?
Calculate wind chill temperature from air temperature and wind speed.
How is it calculated?
The Wind Chill Calculator uses this method: WC = 35.74 + 0.6215T − 35.75V^0.16 + 0.4275TV^0.16 (NWS).
Can you show an example?
With air temperature = 20 °F, wind speed = 15 mph, the Wind Chill Calculator returns wind chill: 6.2 °F; in celsius: -14.3 °C.
Is the Wind Chill Calculator accurate?
Yes. It uses standard formulas and exact constants, and the results are verified by our automated test suite. Values are displayed to up to 12 significant digits.
Is this tool free and private?
Yes — the Wind Chill Calculator is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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