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Calories Burned Calculator

Estimate calories burned by activity, weight and time.

Last updated: 25 Aug 2026

Quick answer

Calories burned ≈ MET × weight (kg) × duration (hours), where MET is the activity's intensity. For example, running (MET 10) for a 70 kg person for 1 hour burns about 700 kcal. Pick your activity and enter weight and time above.

Estimate calories burned in a workout: calories ≈ MET × weight (kg) × hours. MET reflects how intense the activity is.

How to estimate calories burned

  1. 1 Pick your activity (sets the MET value).
  2. 2 Enter your body weight and the duration in hours.
  3. 3 We estimate the calories burned.

Frequently asked questions

How are calories burned calculated?
Using MET values: calories ≈ MET × body weight (kg) × time (hours).
What is a MET?
The Metabolic Equivalent of Task — how much energy an activity uses versus rest (1 MET).
Is this exact?
It is an estimate; actual burn varies with intensity, fitness and individual metabolism.

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