Originally Posted by luv2climb
You are correct that 100% grade is eqaul to a 45 degree hill. Here is the formula:
grade = vertical_climb / horizontal_distance
where both vertical_climb and horizontal_distance are both converted to the same measurement units. So if a hill goes up 264 feet in 2 miles, then we can first convert 2 miles to 10560 feet -- so the grade is then 0.025 = 264 feet / 10560 feet, which is 2.5%
Thus a 45 degree hill is one that for each 1 foot horizontally you travel you go up vertically one foot or
1 ft / 1ft = 1.00 or 100%
Hope that helps everyone.
How do you compensate for zig-zagging back and forth as seen in picture below?
Of course its still the same grade, ya' just cover a lot more distance traversing back and forth and effectively only encounter the full effect of the grade when you turn at the end of each traverse.
..rickko..