Calories Burned Calculator

Use this free calories burned calculator to estimate exercise energy from activity intensity, body weight, and time.

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Research-based formula Estimate limits shown Examples included Private history
Calories burned estimate209 kcal

3.8 MET for 45 min

Calories per hour
279 kcal
MET
3.8
Weight
70 kg

Formula steps

  1. Use the MET value as an activity-intensity estimate.
  2. Calories per minute = MET x 3.5 x body weight in kg / 200.
  3. Multiply by the session duration in minutes.

How to use the calories burned calculator

  1. Enter the requested measurements, dates, lab values, or workout details.
  2. Check that the units and formula assumptions match what the tool is asking for.
  3. Press the calculate button to see the answer, supporting metrics, and formula steps.
  4. Read the estimate with the health disclaimer in mind, then copy the result if you need it for notes.

Common uses

Estimate calories burned during common activities.

Compare walking, running, cycling, swimming, and strength sessions.

See calories per hour from a workout estimate.

Use activity estimates without treating them as exact energy balance.

Examples

Brisk walk 3.8 MET, 70 kg, 45 min

About 210 kcal

Running 9.8 MET, 80 kg, 30 min

About 412 kcal

Strength 5 MET, 72 kg, 50 min

About 315 kcal

Frequently asked questions

Quick answers about formulas, inputs, estimate limits, professional guidance, examples, and private in-browser history.

What can I use the Calories Burned Calculator for?

Use it for quick educational estimates, planning, comparison, and trend checks. Health and fitness results should be interpreted with context, not as a diagnosis.

How does the Calories Burned Calculator calculate the result?

Calories per minute are estimated as MET x 3.5 x weight in kg / 200, then multiplied by duration.

Is this medical advice?

No. This page provides an educational estimate only. Talk with a qualified health professional before making medical, pregnancy, nutrition, medication, or safety decisions.

Are my health inputs private?

Yes. The calculator runs in your browser tab. Recent answers stay only on the page while you use it and are not sent to a server.

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