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Swimming Calorie Calculator
Calories in the pool by stroke and intensity.
Results
- Calories in 30 min
- 291 kcal
MET formula
kcal = 8.3 × 70 × 0.50 h
About 2.8 bananas (105 kcal each) of energy.
Swimming burns about 400–840 calories per hour depending on stroke and intensity. Butterfly and vigorous freestyle sit at the top.
This calculator applies the MET for your stroke to your weight and time.
How to calculate swimming calories
To calculate swimming calories, apply the stroke MET to your weight and hours. Water resistance keeps the burn high even at a steady pace.
Worked example: moderate freestyle (MET 8.3) for 30 minutes at 70 kg burns about 291 calories.
Frequently asked questions
About 400–840 calories per hour depending on stroke, among the highest full-body activities.
Butterfly burns the most at about 13.8 METs, followed by vigorous freestyle and breaststroke.
Yes. It burns high calories with no joint impact, which helps people train consistently.
Results are estimates based on population averages and are not medical advice. Consult a doctor or registered dietitian nutritionist (RDN) before making large changes to your diet, especially for deficits over 2 lb (0.9 kg) per week, during pregnancy or nursing, or for anyone under 18.