What is calculated
Gross activity energy from a selected 2024 Compendium MET value.
Enter your values, then calculate to see a verified result.
A clear calculation path based on your inputs.
Versioned calculationFormula v1.0.1
Gross activity energy from a selected 2024 Compendium MET value.
Multiply the unchanged MET value by kilograms and active hours.
Surface, load carried, wind, grade variation, and walking economy are not measured.
Walking 2.0-2.4 mph, level70 kg for 45 minNot a wearable calibrationkcal is the standardized gross-energy estimate.
The selected MET remains visible for audit.
Do not add the result twice when TDEE already includes the activity.
Continue with your result
Keep exploring
Recompute MET x kg x hours independently for every activity option and verify metric/imperial equivalence and invalid-duration handling.
These records describe the published model and reference tests. A test-case count is not a certification of every possible input or an independent specialist review. Editorial policy
2026-10-05 - Initial evidence-led shared-system implementation with fixtures, boundaries, original support content, and intentional cluster links.
Up to 12 examples from the configured definition fixtures are shown. Expected values use the stated output units; invalid inputs are intended to be rejected.
| Case | Inputs | Expected result |
|---|---|---|
| reference activity | Activity and intensity: moderate; Body weight: 70 kg; Activity duration: 60 min | Selected MET value: 3.8 MET; Estimated activity energy: 266 kcal (allowed numeric tolerance: 0.0001) |
| imperial equivalence | Activity and intensity: moderate; Body weight: 154.3235835 lb; Activity duration: 30 min | Estimated activity energy: 133 kcal (allowed numeric tolerance: 0.001) |
| invalid duration | Activity and intensity: moderate; Body weight: 70 kg; Activity duration: 0 min | Reject invalid input: duration |
Report an issue with this tool. Include the page URL, units, expected answer, and steps to reproduce. Do not include sensitive personal information.
Estimate walking energy from a pace-and-grade description, body weight, and active walking time.
Unlike a flat per-step shortcut, the selected intensity remains explicit.
Continue with the TDEE Calculator. Keep planned activity expenditure separate from whole-day energy needs.
kcal = MET x kg x hours. One standard MET is approximately 1 kcal/kg/hour in the Compendium convention.
Inputs are normalized to the displayed base units, the calculation keeps full precision, and rounding is applied only to visible outputs.
Cross-check the next part of the workflow with the Calorie Calculator. Review a separate daily energy scenario.
At 70 kg for 45 minutes, the selected 3.8 MET activity estimates 200 kcal.
A longer duration or higher MET increases the estimate linearly; individual efficiency, pauses, environment, and measurement error are not inferred.
Use the result as standardized activity-energy arithmetic, not as an exact personal calorie burn or permission to change food intake.
For a separate result with different assumptions, open the Heart Rate Zone Calculator. Compare pace or activity with a transparent intensity convention.
No. It is a standardized MET estimate using body weight and duration.
Wearables may use heart rate, movement, proprietary calibration, and net rather than gross energy.
Yes. Efficiency and physiology can change individual energy cost even when the same standard MET is used.
The calculator does not make that recommendation; first check whether the activity is already represented in your daily energy estimate.
Sources were checked 2026-10-05. They establish the stated method or interpretation boundary; they do not make a field estimate equivalent to laboratory measurement, coaching, medical diagnosis, or an individualized safety decision.
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