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Why do calorie calculations ignore most of the data submitted.

Marvinoutback — Oct 12, 2015 10:21AM BST



The calorie calculation done by mapmytracks is derived entirely from type of activity and duration.
It does not change for speed, distance, elevation change (climbing and descending ) or heart rate.
I can ride a bicycle for an hour on a flat smooth road at 5km/h wearing a heart rate monitor and get credit for the same number of calories as I would if I ride up a steep hill for an hour at 15km/h also wearing a heart rate monitor.

Come on mapmytracks. Surely you can do better than that. There must be plenty of scientific literature about how to get much better estimates of the energy used during exercise, particularly if heart rate data is provided.


1 Community Answers

Nick - Oct 13, 2015 at 09:08AM BST

Map My Tracks team member

Calories are derived from a combination of factors. These include your weight, the sport undertaken and the average speed. These combine to provide the final result. Right now there is no variance applied for the gradient or climate. It becomes quite difficult to account for both of these factors, in particular things like wind.

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