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Calories Burned Calculator

Estimate the calories you burn walking, running, cycling, swimming and more.

Result

Enter your values and select Calculate to see the result.

Runs in your browser — nothing you enter is sent to a server.

How the Calories Burned Calculator works

Every activity has a MET value: how many times more energy it uses than sitting still. Pick an activity, enter your weight and how long you did it, and the calculator applies the standard formula used in exercise science. The MET values come from the Compendium of Physical Activities, which averages many measured studies.

Formula

kcal per minute = MET × 3.5 × weight (kg) ÷ 200

3.5 ml of oxygen per kg per minute is 1 MET, and each litre of oxygen used is about 5 kcal.

Examples

Running at 10 km/h

MET 9.8, 70 kg, 30 minutes: 9.8 × 3.5 × 70 ÷ 200 × 30 ≈ 360 kcal, or about 720 kcal an hour.

Walking briskly

MET 5.0 burns about half as much per minute as running at 10 km/h, for the same weight.

Frequently asked questions

Why is my watch's number different?

Watches add heart rate, and some count calories you would have burned anyway at rest. Both are estimates; use one method consistently.

Does weight change the result?

Yes — moving a heavier body takes more energy, so calories scale with weight.

Is this medical advice?

No. It's an estimate for general information.

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