Question: how many calories do you burn rowing for 45 minutes?
Answer: 3,500 calories equals 1 pound. So a person must have a deficit of 3,500 calories to lose 1 pound of fat. For example, if you eat a 2,200 calorie diet a day, have a Basal Metabolic Rate of 1,900 calories per day, and you row for 45 minutes to burn 800 calories, then you would create a 500 calorie deficit for the day.