Treadmill Calorie Calculator
A treadmill shows distance and speed, but its calorie figure is often rough. This estimate uses your speed, the incline and your body weight to give a steadier number.
- Free
- Works offline after your first visit
- Saves on this device
- No sign-up
- Updated
How it works
The estimate uses the standard walking equation from exercise science. It works out oxygen use per kilogram per minute from speed and grade, then turns that into energy at about 5 calories per liter of oxygen.
Incline matters a great deal. A steeper grade takes much more effort than flat ground at the same speed, so the figure climbs quickly as you raise the slope.
Worked example
At 160 lb body weight, 30 min at 5 mph with a 1% incline burns about 210 kcal.
Questions
Why does my treadmill show a different number?
Machines use their own formulas, and many ignore weight or incline. Two numbers can differ by a wide margin, so compare trends.
Does holding the handrails change it?
Yes. Holding the rails takes some load off your legs, so the real figure is often lower than an estimate that assumes you hold nothing.
Does this work for running?
This estimate is for walking. Running at the same speed costs more energy, and this calculator does not model that.
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