My HRM calculates altitude and distance. Using those two numbers it calculates the grade. You can do the same thing if you know the altitude you started at and the ending altitude - either from a map or a GPS.Originally Posted by bikerchick68
For example I climbed a hill with Jo on Tuesday. It climbed 1280 feet in 3.3 miles. Convert the feet to miles or vice versa, but you need the units to be the same. I climbed .24 miles in 3.3 miles. Divide .24 by 3.3 and you get 7%.
For me a hill is fairly short in duration - under 5 minutes to get over it. A climb is any ascent that takes longer than that.
V.



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