How to calculate pipe offsets

To calculate a pipe offset using 45° and 22½° elbows use the following chart.

Pipe offset

To use this chart simply multiply the known side by the corresponding number to find the missing value.

Side to find Known side 45° offsets 22½° offsets
travel offset 1.414 2.613
offset travel .707 .383
run offset 1.0 2.414
offset run 1.0 .414
travel run 1.414 1.082
run travel .707 .924