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An easy swim burns around 500 calories an hour, while a vigorous effort can reach up to 700 calories an hour. Swimming exercise provided workout for lower body, upper body, core, and back will all be worked and strengthen during a good swimming workout, you can go for 4 to 6 days swimming workout.
Calories Burned. How many calories you burn depends on the intensity with which you swim, and how heavy you are. The American Heart Associations says if you weigh 150 pounds and swim at a rate of 25 yards per minute, your burn 225 calories per hour. You burn 500 calories per hour if you increase your pace to 50 yards per minute. You burn 650 calories per hour swimming 50 yards per minute if you weigh 200 pounds.