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How-to guide

How to Calculate Wind Chill: Formula, Steps & Examples

Learn how to calculate Wind Chill — the formula explained step by step, with worked examples and a free calculator to check your answer.

By Arjun Desai, B.Tech (Engineering) · Updated Jun 2026 · 2 min read

Calculating your wind chill (feels like) is straightforward once you know the Wind Chill formula and what each input means. This guide explains the method in plain language, walks through a manual calculation, and gives worked examples you can follow — then you can do it instantly with the Wind Chill Calculator.

What is Wind Chill?

The Wind Chill calculation tells you your wind chill (feels like) from a few simple inputs. The figure you are solving for here is the wind chill (feels like).

The Wind Chill formula

The core formula is:

Wind chill (feels like) = 13.12 + 0.6215 × Air temperature - 11.37 × (Wind speed)^(0.16) + 0.3965 × Air temperature × (Wind speed)^(0.16)

Here is what each input means:

  • Air temperature — a value measured in °C. Example: 0 °C.
  • Wind speed — a value measured in km/h. Example: 30 km/h.

How to calculate it step by step

  • Write down the air temperature (for example, 0 °C).
  • Write down the wind speed (for example, 30 km/h).
  • Apply the formula above to get your wind chill (feels like).
  • Double-check the result with the Wind Chill Calculator.

Worked examples

Example 1

Input / OutputValue
Air temperature0 °C
Wind speed30 km/h
Wind chill (feels like)-6.5

With air temperature of 0 °C and wind speed of 30 km/h, the wind chill (feels like) works out to -6.5.

Tips for an accurate result

  • Keep your units consistent — mixing, say, months with years or grams with kilograms is the most common source of error.
  • Round only at the very end. Rounding inputs early can shift the final answer noticeably.
  • Re-run the numbers whenever an input changes, rather than estimating from an old result.

Prefer not to do the maths by hand? — the Wind Chill Calculator does it instantly, for free, with the formula and a worked example built in.

Continue exploring weather calculators with these tools: Heat Index Calculator, Dew Point Calculator, Rainwater Harvesting Calculator, Snow Load Calculator, Cloud Base Calculator.

Calculators in this guide

Frequently asked questions

The formula is: Wind chill (feels like) = 13.12 + 0.6215 × Air temperature - 11.37 × (Wind speed)^(0.16) + 0.3965 × Air temperature × (Wind speed)^(0.16). With air temperature of 0 °C and wind speed of 30 km/h, the wind chill (feels like) works out to -6.5.

Gather each input, apply the formula step by step keeping your units consistent, and round only at the end. You can verify your answer instantly with the Wind Chill Calculator.

It uses the standard formula with exact arithmetic, so the result is correct for the inputs you enter. Bear in mind that real-world outcomes can still differ when underlying assumptions change.

Arjun Desai · B.Tech (Engineering)

Arjun Desai is an engineer who writes about the practical physics, electronics and energy calculations behind everyday technology.