Originally Posted by
Machka
Estimate about 500 calories per hour or about 30-35 calories per mile and you'll likely have a more accurate count.
15 mph for 51 minutes would put you at either 425 calories (using 500 calories per hour), or 382.5 to 446.25 (using the 30-35 calories per mile).
That's what my Bell F20 (yes I know it's no power meter) says when I ride at medium to high intensity for an hour...I usually do 15 miles in that hour and get about 450 calories burned...at about 17-20mph.