Estimate calories burned during 100+ activities based on duration, weight, and intensity.
Calorie Burn Calculator estimates energy expenditure after you choose an activity, enter body weight and duration, and specify intensity. The activity and intensity determine an associated MET level, while weight and time scale the result. The common surprise is that intensity is not a minor adjustment: two sessions of equal length at the same body weight can produce substantially different estimates when their MET levels differ. Treat the result as a planning estimate, not a direct measurement of individual metabolism.
Activity and intensity selections identify a MET value, which represents energy cost as a multiple of resting metabolism. A higher-MET cycling or running choice carries a higher modeled rate than a lower-MET walking choice. Matching the listed pace or effort matters because that selection determines the rate applied throughout the entered duration.
With activity and intensity held constant, the estimate rises with both entered body weight and minutes. The calculator reports energy in food calories, meaning kilocalories. It does not observe heart rate, oxygen use, or motion, so the number is a table-based estimate for the specified session rather than a measurement of that session.
Usually not. A wearable may incorporate heart rate, movement, personal calibration, and its own definition of active or total calories, while this calculator uses the selected activity, intensity, duration, and weight. Similar numbers are possible, but agreement does not prove either estimate is exact. Compare them only after confirming the same duration and calorie definition.
It can provide a rough activity estimate for planning, but no, it cannot determine a reliable weight-loss target by itself. Body-weight change also depends on food intake, resting energy needs, other daily movement, and adaptation over time. Avoid automatically eating back every estimated exercise calorie, especially when the activity or intensity selection is uncertain.
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