Join Date: Jul 2003
Location: Where the wild things are
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.