How calories burned calculator works
The calories you burn during exercise depend on the activity's intensity, your body weight, and how long you do it. Sports medicine uses MET (metabolic equivalent) values to express intensity: one MET is your resting energy use, and an activity at 8 METs uses eight times that much energy.
This calculator uses the standard formula calories = MET × weight (kg) × duration (hours). It looks up the MET for each of 16 common activities — walking, running, cycling, swimming, weight lifting, yoga, and more — and applies your weight and duration. Imperial pounds are converted to kilograms internally.
Pick an activity, enter your weight and the duration in minutes, and the tool returns the calories burned plus the per-hour rate. Use it to plan workouts, track energy expenditure, or balance food intake against exercise. The values are estimates; actual burn varies with fitness, intensity, and efficiency.