Home › Calories Burned Calculator
MET × weight × time

Calories Burned Calculator

Estimate calories burned for 25+ activities using published MET values, your weight and your session length.

Your session

Fill in the form and press Calculate — results appear here instantly. Nothing leaves your browser.

How the estimate works

Every activity has a published MET value — a multiple of resting metabolic rate — from the Compendium of Physical Activities. Calories = MET × weight in kg × hours. A 70 kg person running at 9.8 METs for 30 minutes burns roughly 343 kcal; the same session at 100 kg burns 490, which is why body weight matters more than any gadget setting.

Note these are gross figures — they include the calories you'd have burned resting anyway. The exercise-specific addition is the MET value minus 1.

Dig into specific activities

Each activity below has its own page with intensity variants, burn tables by body weight, and practical tips:

Frequently asked questions

Which exercise burns the most calories?

Per minute: high-MET activities like fast running (11–14 METs), jump rope (~12) and competitive sports. Per week: whichever you'll actually do for enough total minutes — duration beats intensity for most people's totals.

Are fitness tracker calorie counts accurate?

Wrist trackers commonly err 20–40% on exercise calories in validation studies. MET-based estimates are also approximations, but they're transparent and consistent — good properties for planning.

Should I eat back the calories I burn exercising?

If your TDEE activity multiplier already covers your training, they're pre-counted — eating them back double-counts. Only add for sessions genuinely beyond your usual pattern.

More calculators

Sources

  1. Ainsworth BE, Haskell WL, Herrmann SD, et al. 2011 Compendium of Physical Activities: a second update of codes and MET values. Med Sci Sports Exerc. 2011. [link]
Medical disclaimer: CaloriesKit provides educational estimates only and is not medical, nutritional, or fitness advice. Calculators use population-level formulas that may not reflect your individual needs. Consult a physician or registered dietitian before changing your diet or exercise routine, especially if you have a medical condition, are pregnant, or are under 18.