Calories Burned Calculator
0 calories burned
How This Estimate Is Calculated
Calories burned during exercise are estimated using the standard MET (Metabolic Equivalent of Task) method: calories/minute = (MET × body weight in kg × 3.5) / 200. A MET value describes how many times more energy an activity takes compared to sitting still — walking briskly is around 3.8 METs, while running at 6 mph is close to 9.8 METs. Multiplying that per-minute rate by your session length gives the total calories burned. Your estimated resting metabolic rate (BMR) shown above uses the Mifflin-St Jeor equation, the most widely validated formula for resting energy expenditure, so you can see how your workout compares to a typical day of baseline burn.
Why MET-Based Estimates Are Approximate
MET values are population averages measured under controlled lab conditions — actual calorie burn varies with fitness level, muscle mass, terrain, effort intensity, and even ambient temperature. Two people of identical weight doing the "same" workout can burn meaningfully different amounts of energy. Treat this number as a reasonable planning estimate rather than a precise measurement, and remember this tool is for general education, not medical advice — consult a doctor or certified trainer for guidance tailored to your health situation.
Put the Number in Context
A single workout's calorie burn matters most in the context of your full-day energy balance. Use the TDEE calculator to see your total daily energy expenditure including this activity, or the calorie calculator to figure out a daily intake target for weight loss, maintenance, or gain.
Frequently Asked Questions
How accurate is a calories-burned estimate?
MET-based estimates are averages derived from lab studies and can vary 15-30% from your actual burn depending on fitness level, effort intensity, and body composition. Use the number as a planning guide, not a precise measurement.
What is a MET and why does it matter here?
A MET (Metabolic Equivalent of Task) represents how many times more energy an activity burns compared to resting quietly — for example, brisk walking is about 3.8 METs while running at 6 mph is about 9.8 METs. The calculator multiplies your chosen activity's MET value by your body weight and workout duration to estimate total calories burned.