Calculate calories burned swimming
Swimming is one of the most effective exercises for calorie burning. As a full-body exercise, swimming activates all major muscle groups and burns 400-700 calories per hour.
MET values for swimming
MET (Metabolic Equivalent of Task) is used to calculate calorie burn. Slow swimming has MET ~5.8, moderate ~8, and fast/competitive ~10.
Intensity and calorie burn
Intensity greatly affects calorie burn. Slow swimming burns ~435 kcal/hour for a 75 kg person, moderate ~600, fast ~750.
Stroke and calorie burn
Butterfly burns most calories (MET 10-11), followed by crawl (8-10), backstroke (7-8) and breaststroke (6-8).