Calories Burned Swimming (Breaststroke) Calculator
Outdoor & Adventure · MET 10.3
Swimming (Breaststroke) has a MET value of 10.3, meaning it uses about 10.3 times the energy your body burns at rest. A 155 lb (70 kg) adult burns roughly 379 kcal in 30 minutes at moderate intensity.
Your calorie burn
Calories burned
379
30 min · MET 10.3 · 154 lbs
The MET formula explained
MET stands for Metabolic Equivalent of Task. One MET equals the oxygen your body consumes sitting still — about 3.5 ml per kilogram of body weight per minute. An activity rated 10.3 METs uses 10.3 times that amount.
Calories burned = Duration (minutes) × (MET × 3.5 × Weight in kg) ÷ 200
Imperial weights are converted to kilograms automatically (1 kg = 2.205 lbs). Intensity scales the MET value: low ×0.75, moderate ×1.0, high ×1.3.
Calories burned swimming (breaststroke) by body weight
| Body weight | 15 min | 30 min | 45 min | 60 min |
|---|---|---|---|---|
| 125 lbs (57 kg) | 153 kcal | 307 kcal | 460 kcal | 613 kcal |
| 155 lbs (70 kg) | 190 kcal | 380 kcal | 570 kcal | 760 kcal |
| 185 lbs (84 kg) | 227 kcal | 454 kcal | 681 kcal | 908 kcal |
| 215 lbs (98 kg) | 264 kcal | 527 kcal | 791 kcal | 1055 kcal |