For those looking at a calorie estimate and thinking it's too high, well your right.
Most of the estimates of calories burned are way too optimistic and sometimes I think they do it that way so people feel better about eating more.
Typically a good (not pro or serious amateur) road cyclist will only burn an additional 10 cals a minute over their resting amount. This means any estimate over 500-600 an hour is probably too high.
Here's a good idea of reality:
From
http://www.cptips.com/formula.htm
So if you know the average speed (velocity) of your ride, and the total time you were out, you can calculate the number of Calories "burned". Here are a few examples (average speed for the ride, on the flats):
- 5 mph - 7 Cal/mile - 37 Cal/hr
- 10 mph - 13 Cal/mile - 133 Cal/hr
- 15 mph - 23 Cal/mile - 349 Cal/hr
- 20 mph - 37 Cal/mile - 742 Cal/hr
- 25 mph - 55 Cal/mile - 1374 Cal/hr
- 30 mph - 77 Cal/mile - 2303 Cal/hr