To calculate plumbing math pipe offsets using 45 degree and 22 1/2 degree elbows use the following chart.
To use this chart simply multiply the known side by the corresponding number to find the missing value.
Side to find | ![]() |
Known side | ![]() |
45 degree offsets | ![]() |
22 1/2 degree 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 |