HR, Calories and Calculators

petey49

Hi. I found my old HRM (one that does not calculate calories burned), put some new batteries in it and worked out. I knew where my heart rate was and for how long. The hard part was trying to figure out how this translates into calories burned. I found a few calculators one at

http://www.gersic.com/calories/

and one at

http://www.triathlontrainingblog.com/post/calories-burned-calculator-based-on
-average-heart-rate/

The first one calcualted calories burned at 418 and the second one calculated calories burned at 487.

Not sure which is right, should I just take the average and say close enough? Any thoughts? Do you have a better calculator?

Thanks