Calories Burned Calculator

Estimate calories burned during an activity using the standard MET (Metabolic Equivalent of Task) formula, based on your weight and duration.

  • Free to use
  • Accurate results
  • No registration required
  • Works on all devices
Choose an activity, then enter your weight and duration to estimate calories burned.
kg
minutes

Your result

360 kcal

Calories burned

Calories per minute12.01 kcal/min

AI explanation

Formula

Calories/min = MET × 3.5 × weight(kg) / 200. Total calories = calories/min × duration

Worked example

70kg, running, 30 minutes

Worked example: 70kg, running, 30 minutes
FieldValue
Activityrunning
Weight70
Duration30
Calories burned360

Assumptions

  • Uses standard MET (Metabolic Equivalent of Task) values from the Compendium of Physical Activities for each activity at a typical/moderate intensity.
  • Actual calorie burn varies with individual fitness level, exact intensity, and terrain/ conditions — this is a population-average estimate.
  • Informational only.

Frequently asked questions

What is a MET value?

A Metabolic Equivalent of Task (MET) measures how many times more energy an activity uses compared to resting — a MET of 1 is resting, and a MET of 8 means burning 8x your resting rate.

Why does calorie burn depend on my weight?

Heavier bodies expend more energy to move the same distance or perform the same activity, so calorie burn scales roughly proportionally with bodyweight for weight-bearing activities.

Is this as accurate as a fitness tracker?

MET-based estimates are a reasonable approximation but don't account for individual fitness level, exact pace/intensity, or heart rate the way a wearable device with heart-rate tracking can.

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Related articles

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How Calories Burned During Exercise Are Calculated

Calories burned come from a MET value — how many times more energy an activity uses compared to resting — multiplied by bodyweight and a standard constant, then scaled by how long the activity lasts.

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Why the Same Workout Produces Two Different Real Numbers

Feeding one real workout — the same weight and duration — into two separate calculators gives calories burned and recommended water intake, two genuinely different answers about the same hour of exercise, each scaling with weight in its own way.

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Sources

This calculator provides a general estimate only and does not constitute personalized medical or fitness advice.

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