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  1. #1
    Senior Member jrickards's Avatar
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    Calorie counters

    I have started using MapMyRide.com to keep track of my bike rides as a motivational tool to keep riding and improve my health and fitness.

    However, when comparing the calorie counter from various sources on the 'net with the one used on MapMyRide, the MMR one is about 15-20% lower.

    Anyone else discovered the same?

    On the other hand, perhaps I could ask myself, should I even bother thinking about it?

  2. #2
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    What are people's thoughts about Strava? My commute (~30 mins moving time at ~16-20mph) burns ~300Cal on Strava but using, say, livestrong I burn 600 cals...
    http://veloviewer.com/SigImage.php?a=207be&r=3&c=5&u=M&g=p&f=abcdefghij&z=a.png

  3. #3
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    all the people I know that count calories are fat.

  4. #4
    Long Distance Cyclist Machka's Avatar
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    Assume 500 calories per hour and you'll be in the ball park.

  5. #5
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    Quote Originally Posted by howeeee View Post
    all the people I know that count calories are fat.
    Well I definitely do not skew your sample set then..
    http://veloviewer.com/SigImage.php?a=207be&r=3&c=5&u=M&g=p&f=abcdefghij&z=a.png

  6. #6
    Senior Member Notso_fastLane's Avatar
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    MMR and other apps like that don't really know how hard your body is working, how much you're coasting, etc. I think an actual heart monitor, properly set to your age/weight, etc, will at least get you closer to the ball park.

  7. #7
    Senior Member Looigi's Avatar
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    Quote Originally Posted by howeeee View Post
    all the people I know that count calories are fat.
    Or have been, and count to keep from getting a fat again.

  8. #8
    ouate de phoque dramiscram's Avatar
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    On RunKeeper if I enter my data manually (time and distance) I 'burn' about 1000 calories/hour, if I download the ride with a gps it's about 600 cal/hour so I don't rely on those number ever, instead I keep on being fat.
    Originally Posted by Leebo

    Headwind is like a hill without a soul. Just gear down and suffer.
    Quote Originally Posted by jrickards View Post
    Headwinds are hills dipped in evil!

  9. #9
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    Most calorie counters/GPS apps tend to overstate how many calories you're expending while biking. I've heard around here a more reasonable estimate is 30-50 calories a mile, depending on your size, ability, speed, etc.

    Probably the best measurement of energy used while biking is a power meter on the crank. Guestimating via your speed or heart rate will probably introduce some error. (not to poo-poo heart rate monitors, they are useful, but for energy use there are better measurements)
    Last edited by umazuki; 01-17-13 at 12:15 PM. Reason: HTML garbage
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  10. #10
    GT4
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    Goofy Goober GT4's Avatar
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    The calories burned in MMR is purposely made to be 15-20% lower than reality too make you feel like you didn't ride long enough. That's another motivator.

    If you want accurate "calories burned", get a garmin 200 or above. It also has a lot more stuff than just MMR.

  11. #11
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    Quote Originally Posted by GT4 View Post
    The calories burned in MMR is purposely made to be 15-20% lower than reality too make you feel like you didn't ride long enough. That's another motivator.

    If you want accurate "calories burned", get a garmin 200 or above. It also has a lot more stuff than just MMR.
    I'll second the garmin!

    I've got the 310xt and the difference between calories burned using the HRM and when I don't use the HRM is huge. For example, a just under two hour 50 km loop where I *didn't* use the HRM says that I burned 1180 calories. Another ride where I did use the HRM is on the same loop (but minus an out and back): an hour and a half, 38 km, and 420 calories. I highly doubt that my last 10k on that first ride burned 720 calories.

    I'm guessing that speed-based calorie calculators don't consider that downhill = fast.

  12. #12
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    Quote Originally Posted by howeeee View Post
    all the people I know that count calories are fat.
    Or people who just really like numbers

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