How it is calculated
Each activity has a MET value: how many times more energy it uses than sitting still. Calories = MET × body weight in kg × time in hours. The values come from the Compendium of Physical Activities, used in research worldwide.
How to use the number
Activity calories are estimates. If you count calories, do not eat back all of them — fitness trackers and formulas often overestimate. Use your weight trend over 2–3 weeks as the real check.
Questions and answers
Does running or walking burn more?
Per minute, running burns about twice as much. Per kilometre the difference is smaller, because walking takes longer.
Why does a heavier person burn more?
Moving a heavier body takes more energy, so the same activity burns more calories.
How it is calculated: sources
- Ainsworth BE et al. 2011 Compendium of Physical Activities. Med Sci Sports Exerc. 2011;43(8):1575–1581.
- Herrmann SD et al. 2024 Adult Compendium of Physical Activities. J Sport Health Sci. 2024;13(1):6–12.
Gymvert gives general information for healthy adults. It is not medical advice. If you have a health condition, are pregnant, or are unsure, talk to a doctor before changing your training or diet.