Calorie Calculator reports 600 calories.Originally Posted by CdCf
Calorie Calculator reports 535 calories.Ride #2:
10 km on flat road with a 5 m/s headwind followed by riding the same distance back, with a 5 m/s tailwind instead.
Average speed 22 km/h. Total time 54.5 min. Total energy 740 kcal.
(Online calculator suggests 730 kcal for this ride...)
So, average speeds go down while energy spent goes up.
But the online calculator tells you that the first ride used more energy than the second...
And 5 m/s of wind is not at all uncommon!
Have you considered maybe the problem lies with the site you are using and not the methodology?