Swimming Calories Calculator
Quick answer: Enter weight, time, and stroke to calculate calories burned swimming.
Calculate calories burned swimming based on bodyweight, time, and stroke. Different strokes have different MET values — butterfly burns the most (≈ 13.8 MET) while leisurely swimming or treading water burns about 6 MET.
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Last reviewed: April 2026Report an error
Calories Burned
311
Freestyle, light/moderate for 30 min (MET 8.3) burns about 311 calories. Rate: 621 cal/hour.
Total calories
311 cal
Per hour
621 cal/hr
MET value
8.3
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How to Use This Swimming Calories Calculator
- 1Enter your bodyweight in lbs.
- 2Enter swim duration in minutes.
- 3Select your stroke (freestyle, breaststroke, backstroke, butterfly, leisure).
- 4Read total calories and calories per hour.
Frequently Asked Questions
- Butterfly burns the most (~13.8 MET). Vigorous freestyle and breaststroke burn about 10 MET. Leisurely swimming burns about 6 MET.
- Vigorous swimming can burn calories at a similar rate to running, especially in cold water where the body works harder to maintain temperature.
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