How Many Calories Does Swimming Burn?
A 70 kg person burns about 210 calories in 30 minutes of Swimming; the figure rises with body weight and duration.
Swimming calorie calculator
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How many calories does Swimming burn?
Swimming at a moderate pace is a low-impact activity that works the whole body.
In swimming the resistance comes from the water, which is roughly eight hundred times denser than air, so even small differences in technique change the figure noticeably. As technique improves, the same distance costs less energy.
Swimming calories by weight and duration
| Weight | 15 min | 30 min | 45 min | 60 min |
|---|---|---|---|---|
| 50 kg | 75 | 150 | 225 | 300 |
| 60 kg | 90 | 180 | 270 | 360 |
| 70 kg | 105 | 210 | 315 | 420 |
| 80 kg | 120 | 240 | 360 | 480 |
| 90 kg | 135 | 270 | 405 | 540 |
| 100 kg | 150 | 300 | 450 | 600 |
| 110 kg | 165 | 330 | 495 | 660 |
| 120 kg | 180 | 360 | 540 | 720 |
The figures above assume moderate, continuous swimming.
Values in the table are kilocalories (kcal), calculated as MET × weight × time; this page uses a MET value of 6 for Swimming. Use the calculator above for figures in between.
What changes the calories burned by Swimming?
- Stroke: breaststroke, freestyle and butterfly sit at different intensities.
- Rests at the wall: pauses at the poolside are not part of the time in the table.
- Water temperature: cool water asks for extra energy to hold body temperature.
For informational purposes only — not medical advice. If you have symptoms or a medical condition, consult a doctor.
Frequently asked questions
How many calories does Swimming burn in one hour?
A 70 kg person burns about 420 calories in one hour (60 minutes) of Swimming. Heavier people and longer sessions burn more.
How does body weight affect calories burned by Swimming?
Calories burned rise with body weight: a 90 kg person burns about 270 calories in 30 minutes of Swimming, while a lighter person burns less in the same time.
How long does it take to burn 300 calories with Swimming?
A 70 kg person burns 300 calories in about 43 minutes of Swimming. A heavier person reaches the same figure in less time.
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