Hill Grade?

Discussion in 'The Bike Cafe' started by Rocket_Man, Jul 28, 2006.

  1. Rocket_Man

    Rocket_Man New Member

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    How do you find the grade of a hill?? I know there is a way to figure it out...but I forgot how. The hill in question is 3 miles, with a 800' elevation change. Any help would be great...thanks!!!:)
     
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  2. Darkhorse85

    Darkhorse85 New Member

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    well, just make a triangle and do some geometry. Dont forget to convert all units to be the same type. Once you find the degree, you can convert that into a percentage of 360 er whatever for percent grade.

    but this would just be the average grade over that 3 miles.
     
  3. blowin mud

    blowin mud New Member

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    ...5%
     
  4. Darkhorse85

    Darkhorse85 New Member

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    give a man a fish, he'll eat for a day
    teach a man to fish...
     
  5. Rocket_Man

    Rocket_Man New Member

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    Hmmm...ok...so...
    5280' ~ mile
    x 3 ~ miles
    -----
    15840' Total distance

    Then you divide the elevation change by the distance??

    800/15840 = .05 or 5%

    Hmmm...seems correct!!! And yes...that would be the AVERAGE grade over those 3 miles...there are some parts where it is steeper/flatter.

    THANKS!!!
     
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