Degrees to percent

Al Stangenberger forags at nature.Berkeley.EDU
Wed Dec 24 13:34:44 EST 1997


Roger Whitehead (rgw at office-futures.com) wrote:
: > Can anyone tell me how to convert degrees slope to percent slope?

: Degrees of slope/90 degrees x 100%.

How so?  A 45-degree slope is 100 percent (100 feet rise per 100 feet run).
By your formula 45/90*100 = 50%.

A 90-degree slope is infinite percent (infinite rise in 100 feet horizontal
run), not 100%.

A better solution is to multiply the tangent of the slope angle by 100 .


--
Al Stangenberger                      forags at nature.berkeley.edu            
Dept. of Env. Sci., Policy, & Mgt.    145 Mulford Hall # 3114
Univ. of California at Berkeley       Berkeley, CA  94720-3114
(510) 642-4424  FAX: (510) 643-5438   



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