I've been working out by running around the neighborhood lately, and I've been tracking my runs on two running sites, as well as keeping track of the calories on MyFitnessPal. However, I've been confuzzled lately about the calories that I should be tracking on my calorie tracking. For example, for a recent 46-minute heavy interval run, I get:
- 881 calories burned from RunKeeper
- 1242 calories burned from Dailymile
- 765 calories burned from MyFitnessPal (entered as 46 minutes Jog @ 6mph)
These numbers are wildly different, and I don't want to over or under-eat calories based on my diet. I would think that RunKeeper, which actually keeps track of my pace using the GPS and elevation would be better because of more data. Lately I have been trying to under-estimate by using the lowest of the three that come up.
Which number should I be trusting? Are any of these numbers worth anything?