Activity Calorie Calculation — MET Method
The scientific standard for estimating calories burned during exercise is the MET (Metabolic Equivalent of Task) method: Calories = MET × Weight (kg) × Duration (hours).
Common MET Values
- Slow walk (3 km/h): MET 2.8
- Normal walk (5 km/h): MET 3.5
- Fast walk (6 km/h): MET 4.3
- Light jog (8 km/h): MET 8.0
- Moderate run (10 km/h): MET 10.0
- Fast run (12 km/h): MET 11.5
- Cycling (16 km/h): MET 8.0
Fat Burning
Burning 1 gram of body fat requires approximately 7.7 kcal. Body fat contains roughly 20% water, so the actual fat loss equals calories burned ÷ 7.7. Consistent activity creates the calorie deficit needed for sustained fat loss.
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