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  1. #26
    RVH
    RVH is offline
    Bob from Boston
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    I estimate it this way

    You've got to be really working hard, very hard to burn 1000 calories/hour. I normally ride at about 14-15 mph in hilly terrain (White Mountains of New Hampshire) and I use 600 calories/hour as my estimate. I use a heart rate monitor and after about ten minutes I am in the 140-160 range (flats versus big hills; I am 62 yrs old and 245 lbs, 6'3")

    So, at 15 mph I think I am burning about 10 calories/minute.

  2. #27
    Senior Member spdracr39's Avatar
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    It is just an estimate. An actual power meter is the only way to really know and even then it is not going to be perfect because of variations in metabolic rate and your athletic abilities. Even your level of hydration can affect calories burned.

  3. #28
    Senior Member CommuteCommando's Avatar
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    Quote Originally Posted by bbeasley View Post
    I cut all the estimates in half
    Or use a device that calculates it using a HRM, and reducing it by 25%

    Another thing to consider is if you burn 80 cal/hr sitting on your keester, and 600 cal/hr riding a bike instead of sitting on your tush, that's 520 cal net. Exercising for weight loss, I try to eat half the excess calories I figure I burn. Trying to eat a 2000 cal daily diet and doing 3kCal rides is a recipe for bonking.

    Quote Originally Posted by RVH View Post
    I use 600 calories/hour as my estimate.
    This roughly agrees with what my Garmin with HRM gives.
    As much as you paid for that Beemer [Mercedies, Audi, Escalade], I'm surprised it didn't come equipped with turn signals.

  4. #29
    Senior Member raqball's Avatar
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    My normal daily ride is 40 miles (40.30'ish miles) and my Garmin 810 with heart rate monitor generally tells me I've burned about 2K calories..

    This comes out to about 500 calories every 10-miles.. I am skeptical of this number as I believe it to be on the high side..

    My 40 mile route consists of about 17 miles total in the city (stop and go) and about 1600 ft worth of climbing. There is a mile and a half a mile climb just prior to my turn around point with about a half mile of that registering at 14% grade on my Garmin.. My average speed for the ride is generally anywhere from 14.4mph to 15.1mph depending on how windy it is.. I live in the desert and recently temps have been in the low 90's..

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