Body weight is one of the biggest inputs in running calorie estimates because moving more mass over the same distance requires more energy. Use the result as a planning estimate, then compare it with route distance, duration, elevation, and how hard the run actually felt.
Why Weight Matters
Most running calorie formulas use body weight because the energy cost of locomotion scales with mass.
A heavier and lighter runner can run the same pace and distance but receive different calorie estimates.
Distance Still Matters
Weight changes the estimate, but distance and duration still shape the total.
That is why the same runner burns more total calories in a long run than in a short run at similar effort.
How to Compare Runs
Use the same calculator method when comparing weeks or routes.
Do not compare watch estimates, treadmill estimates, and MET estimates as if they used the same assumptions.
Method and Sources
How this page is checked
- Calorie estimates use MET-based math: MET x body weight in kilograms x duration in hours.
- Elevation pages include an uphill adjustment when elevation gain is part of the page or calculator.
- Results are planning estimates; individual running economy, terrain, heat, wind, and device accuracy can change real energy cost.
Sources
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