Calories Burned Calculator
Estimate calories burned from your activity, body weight, and workout time
Pick one of eight activities — running, cycling, swimming, and more — enter your body weight and how long you worked out, and this calculator uses MET values to show your estimated calorie burn instantly. Whether you're tracking a weight-loss plan or just logging workouts, it's an easy way to gauge what you burned today. All math runs entirely in your browser, so nothing you enter is sent to a server.
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🔒 Everything runs 100% in your browser. Your files and input are never uploaded to any server.
How to use
- Choose the activity you did from the list (running, cycling, swimming, weight training, hiking, yoga, soccer, or badminton)
- Enter your body weight in kg
- Enter how many minutes you exercised
- Your estimated calorie burn (kcal) and the MET value for that activity appear automatically at the top of the screen
FAQ
- How is the calorie burn calculated?
- It multiplies each activity's MET (metabolic equivalent of task) value by your weight and duration, using the formula MET × 3.5 × weight (kg) × time (min) × 0.005. The result is an estimate — your actual burn varies with fitness level, intensity, and conditions.
- My activity isn't on the list
- The calculator currently covers MET values for eight activities: running, cycling, swimming, weight training, hiking, yoga/stretching, soccer, and badminton. Pick one with a similar intensity to get a rough ballpark figure.
- Is my weight or workout data saved anywhere?
- No. Every calculation happens inside your browser — nothing is stored or transmitted to a server.