Calories Burned Running Calculator
Estimate how many calories a run burns from your speed, your weight and how long you ran. It is an estimate built on standard running figures.
- Free
- Works offline after your first visit
- Saves on this device
- No sign-up
- Updated
How it works
The calculator works out the oxygen your body uses while running at your speed with the standard ACSM running equation: 0.2 millilitres per kilogram for each metre per minute, plus 3.5 at rest.
Calories equal that oxygen use times your body weight times your minutes, at about 5 calories per litre of oxygen. Faster running costs more energy each minute, so speed matters most. The total includes resting energy. Hills and wind are not counted.
Worked example
Running for 30 min at 6 mph with a body weight of 160 lb burns about 388 calories.
Questions
Why does speed change the answer so much?
Energy use rises quickly as you run faster, so a small change in pace can change the total noticeably.
Will my watch show the same number?
Often not. Devices use their own formulas and sensors, so compare the trend over weeks more than one exact total.
Does body weight really matter?
Yes. A heavier body moves more mass, so it uses more energy at the same pace and time.
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