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  1. #1
    Member
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    Calculated Power Output

    Can power output be calculated based on HR, Speed, terain or a Power Meater is a MUST to get these numbers?

  2. #2
    Brick Snotshoulders
    Join Date
    Sep 2004
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    It _can_ be calculated based on speed and terrain. Here's an online calculator http://www.kreuzotter.de/english/espeed.htm.

    Bear in mind that the calculation is only as accurate as the numbers you give it, and that some of the numbers are nigh-impossible for a normal person to be accurate with (frontal area, coefficient of drag, wind speed...) but it can get you into the ballpark.
    Okay........maybe I'm lying about the otter.

  3. #3
    Oldbie bike racer
    Join Date
    Jan 2006
    Location
    NorCal
    My Bikes
    Steve Rex road, track, Richard Sachs road, Giant mtb
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    www.analyticcycling.com has the online tools to calculate power too.

    Even a 3mph wind makes a difference in power. Some people will do an out and back test to help account for slope and wind.

    -Warren

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