Calculate calories burned during activities
A calorie burn calculator estimates energy expended during physical activity based on the activity's MET value (Metabolic Equivalent of Task), your body weight, and duration. It's used to estimate how many calories a specific workout or activity burned.
Calories Burned = MET × Weight (kg) × Duration (hours)
MET (Metabolic Equivalent of Task) measures how many times more energy an activity uses compared to resting. Sitting quietly is 1 MET; brisk walking is about 3.5 METs; running at 6 mph is about 10 METs.
Yes — calorie burn scales directly with body weight in the MET formula, so a heavier person burns more calories than a lighter person doing the identical activity for the identical time.
They provide reasonable estimates based on population averages but can be off by 10-20% for an individual due to differences in fitness level, movement efficiency, and exact intensity.
Yes significantly — a faster running pace or higher resistance level has a higher MET value, so increasing intensity increases calories burned per minute, even at the same duration.
Yes, but treat the result as an estimate — combine it with your TDEE (total daily energy expenditure) rather than assuming exercise calories are perfectly precise, since overestimating burn is a common reason weight loss stalls.