Treadmill Calories VS Charge2 Calories

[Queenny]

Hello im hoping someone can help me out .Today I ran on my treadmill  

for 55 minutes the Speed was 9mph & once i was done my Treadmill says 300 calories burned , my

Charge2 says 586 calories burned I didnt put my age or weight in tredmill I just want to know which calorie calculation is right the Charge 2 , or my treadmill , please help thank u. 

[USAF-Larry]

@Queenny, the Charge 2 will be a lot closer than the treadmill. It may overcalculate the calories, but it will be a lot closer than the treadmill because the Charge 2 uses your profile information and the heart rate to calculate calories. The treadmill uses a "national average" to calculate the calorie burn based on speed, time, and incline during the exercise.

[emili]

@Queenny Hello! I actually read your post twice to make sure I read it right. Its usually the treadmill that over calculates calories not the tracker. But as Larry pointed out, I would go with your tracker. Based on the data he sited, it will be closer to reality than the treadmill.