Differences in Calories burned

[dnhooger]

I went for a 52 k ride today and was looking at the calories burned. the summery on my phone said 1169 but when I imported it into ibike program to look at it it said 783?
Can anyone help explain the discrepancies ?

[Velocomp]

Please post a ride file.

[dnhooger]

Thanks for having a look at it for me. As I was up loading the file it kept asking me if it was a there and back and it would change it even if I said Yes ,No or unknown. this has been changed as well from 1169 kcals burned.

Dist: 32.04 mi (2:32:02)
Energy: 818.2 kJ
Cals Burn: 782.3 kcal
Climbing: 591 ft
Braking: -19.1 kJ (-2.3%)
Min Avg Max
Power 0 89.7 418 W
Aero 0 46.6 390 W
Rolling 0 31.4 93 W
Gravity -1600 -0.2 561 W
Speed 0.0 12.6 37.6 mi/h
Wind 0.0 14.0 26.3 mi/h
Elev 1151 1219 1273 ft
Slope -9.6 -0.00 7.3 %
Caden 0 81.0 133 rpm
HR 76 129.1 158 bpm
NP 118 W; IF 0.769; TSS 150.0
CdA: 0.365 m^2; Crr: 0.0055
227 lbs; 05/04/2011 11:38 AM
47 degF; 1013 mbar

[Velocomp]

Make sure that your iPhone is displaying calories, not estimated calories. Estimated calories come from HR information and is less accurate. You can check this in the Options/Configure User Screens section.

[dnhooger]

I checked the screen was set on calories not estimated calories. I tried to add the original file to this post but is says that extension
ibd is not allowed.
I checked some other rides and they were the same.
the only thing that was different in this ride was it over lapped in some areas.
Norm

[dnhooger]

I should clarify when I say that my other rides were the same was that the calorie count was the same on my phone as on the ibike program, therefore there were no problems encountered.
Norm

[Roadiemark]

I am also seeing a difference in calories burnt on the iBike Dash and after importing into the software, not massive but there is a difference the last ride it was about 40 cal out and the software doesn’t match up with Firstbeat Athlete it around 75 or so cals out from that to, but to be fare cals are worked out in a different way in FBA.

mark