Road Grade
I understand there is a book or program that tells you what the grade of a road is. Also is there one that will tell you what route that maybe to narrow or windy, So I know what routes to take.
Forum Discussion
With an 8% grade you will rise (or fall) approximately 420 vertical feet per mile driven. I always figure it off of 5000 feet (easier for me and it is close enough) instead of 5280.
200 vertical feet per mile = 4% grade
300 vertical feet per mile = 6% grade
400 vertical feet per mile = 8% grade
500 vertical feet per mile = 10% grade
200 vertical feet per mile = 4% grade
300 vertical feet per mile = 6% grade
400 vertical feet per mile = 8% grade
500 vertical feet per mile = 10% grade
