Join Date: Jul 2003
Location: Where the wild things are
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My bike computer has an altimeter, and states the road grade (Though it always seems to be lower than what either road signs, or calculating off a topo map).
As alluded to, you can also get a good idea of average grade on a hill by looking at a topo map. Just use:
(Top Elevation(feet) - Bottom Elevation(feet)) / length of climb (feet)
So if the top elevation was 800', the bottom was 200', and the climb was 1 mile, you'd use:
(800-200)/5280 = 0.114, or about an 11 1/2% grade
Edit- you dont have to use feet, just consistent units. e.g.- everything could be calculated in meters.
Last edited by BlueDevil; 08-28-08 at 05:35 AM.