Imperial
Drop=
Grade X Run
Imperial
Grade =
Drop / Run
Imperial
% X Run / 100 =
Drop
(Must all be in inches to work)
Imperial
% =
Drop / Run X 100
(All in inches to work)
Metric
Drop =
Run (mm) / Grade
Metric
Grade =
Run (mm) / Drop
Metric
% Grade =
Drop / Run (mm) X 100