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 |
The topic of math calculations in reference to plumbing is covered in other related posts discussing plumbing math.
To learn more on the type of basic math commonly used by plumbers in the industry, check out this informative video: