Calories Burned Calculator

MET-based calorie estimates are reasonably accurate for most people, typically within 15 to 20 percent of actual expenditure. They are more accurate for steady-state activities like running or cycling and less accurate for activities with variable intensity like team sports. For the most precise measurement, a lab-based indirect calorimetry test is the gold standard.

Moving a heavier body requires more energy. A 90 kg person running at the same speed as a 60 kg person does significantly more mechanical work per step because they are propelling more mass. This is why heavier individuals burn more calories during the same activity and duration.

Gym machines tend to overestimate calorie burn by 15 to 30 percent, sometimes more. They use generalised formulas that do not account for your individual fitness level, body composition, or how much you are actually gripping the handrails (which reduces effort). Use machine readings as a relative benchmark to track improvement, but do not rely on them for precise dietary planning.

Yes. Muscle tissue is more metabolically active than fat tissue, so people with more muscle burn slightly more calories at rest and during exercise. However, the difference per kilogram of muscle is modest (roughly 6 to 10 calories per day per kg). The bigger benefit of muscle is its impact on your BMR and your ability to perform higher-intensity exercise, both of which increase total daily calorie burn.

EPOC stands for Excess Post-Exercise Oxygen Consumption. After intense exercise, your body continues to consume more oxygen than at rest as it repairs muscle, replenishes energy stores, and clears metabolic byproducts. This elevated metabolism can last 2 to 24 hours after exercise and can account for an additional 50 to 200 calories beyond what you burned during the workout, depending on intensity.

For most people, 10,000 steps burns approximately 300 to 500 calories depending on body weight, pace, and terrain. At an average stride length, 10,000 steps covers roughly 7 to 8 km. Walking is one of the most underrated fat-loss tools because it burns meaningful calories without creating significant fatigue or increasing appetite the way intense exercise can.

Research shows that wearable devices like Apple Watch, Fitbit, and Garmin overestimate calorie burn by 15 to 30 percent on average. Heart-rate-based estimates are generally more accurate than step-based ones. Use your tracker for trend analysis and relative comparisons rather than as an absolute calorie count for dietary planning.