Enter the upstream and downstream invert levels and the pipe length to get the fall, grade and ratio for the run.
Results
Formulas
Fall = start IL − end IL
Grade % = fall ÷ length × 100
Ratio 1:X where X = length ÷ fall
Doing this for a real job? Fieldlink turns takeoffs into estimates, quotes and job budgets — with rates you can reuse.
See civil estimating