Rolling Offset Calculator
Find pipe travel and run for a rolling offset.
Find the diagonal pipe length (travel) and horizontal run to route around an obstacle.
The math behind it
travel = offset ÷ sin(fitting angle); run = offset ÷ tan(fitting angle). 45° fittings are most common.
Worked example
12 in offset with 45° fittings → 16.97 in travel.
FAQ
True rolling offset?
For a 3D offset, combine vertical and horizontal offsets with Pythagoras first.