Originally Posted by
CACycling
Using the age, sex & weight you entered, it measures your heart rate and calculates the kilocalories you are burning. It doesn't measure the calories burned, it computes them based on the variables entered and what an average person would burn under those circumstances so it will be close for most people.
Close enough, for sure. I used an HRM to lose 50 lbs by counting calories. I looked into many methods of calculating calorie expenditure and found that the HRM was close to most of them.