what is the calories burn algorithm for run keeper [closed]

what is the calories burn algorithm for run keeper [closed]

References

Reference NO 1

http://www.quora.com/RunKeeper/What-algorithm-does-Runkeeper-use-to-calculate-calories-burned

Reference NO 2

http://support.runkeeper.com/entries/21705386-How-are-Calories-Burned-calculated-

Reference NO 3

http://www.myfitnesspal.com/topics/show/996861-runkeeper-calorie-count

Reference NO 4

http://support.loseit.com/customer/portal/questions/1153378-sync-runkeeper-to-up-or-lose-it-

Reference NO 5

http://forum.polar.fi/showthread.php?p=74063

Reference NO 6

http://dailymonthly.com/?p=462

Reference NO 7

http://www.runningahead.com/forums/post/d0d2cf98af6a4113ae1f37a8cfb79ef3

Reference NO 8

http://forums.roadbikereview.com/coaching/garmin-connect-vs-strava-calorie-count-discrepancy-271916.html