The number of calories you burn during exercise depends on the intensity of the activity, your body weight, and how long you do it for.
This calculator uses standard MET (Metabolic Equivalent of Task) values for common activities, combined with your weight and duration, to estimate calories burned.
Example: 30 minutes of jogging (MET 6.0) for a 65 kg person:
Calories = 6.0 × 3.5 × 65 / 200 × 30 = 204.75 kcal
A MET represents how many times more energy an activity uses compared to resting; for example, an activity with MET 6 burns 6 times your resting energy rate.
Yes, heavier individuals burn more calories doing the same activity because more energy is needed to move a larger body mass.
They are good estimates for planning purposes, but actual calorie burn varies with fitness level, terrain, and effort.