Search keyword: myfitnesspal brings up all these threads
http://forums.teamestrogen.com/searc...archid=3990782
My understanding of the app, and I use it almost daily, is that not everyone earns the same amount of calorie burn from exercise. It's based on a calculation from your set up: age, level of activity, current weight, target weight, and planned weight loss (lbs per week) Now, I can't speak to the true accuracy of it, but when comparing notes with friends who do the same workout class as I do, we are all given different numbers for the same entry.
I don't know that there's a truly, 100% way to get your actual calories burned without going very scientific. What I do know is that for me, I followed the apps guidelines exactly and lost 9% body fat in 12 weeks.
(for 120 min of 12-14 mph I do not get 1000, I get 850)