Schedule 40 PVC Pipe Dimensions Chart
Get dimensions to standard pipe sizing using the chart below.
| Nominal Pipe Size | O.D. | Average I.D. | Min. Wall | Nominal wt./ft. | Maximum W.P PSI |
| 1/8" | .405 | .249 | .068 | .051 | 810 |
| 1/4" | .540 | .344 | .088 | .086 | 780 |
| 3/8" | .675 | .473 | .091 | .115 | 620 |
| 1/2" | .840 | .602 | .109 | .170 | 600 |
| 3/4" | 1.050 | .804 | .113 | .226 | 480 |
| 1" | 1.315 | 1.029 | .133 | .333 | 450 |
| 1-1/4" | 1.660 | 1.360 | .140 | .450 | 370 |
| 1-1/2" | 1.900 | 1.590 | .145 | .537 | 330 |
| 2" | 2.375 | 2.047 | .154 | .720 | 280 |
| 2-1/2" | 2.875 | 2.445 | .203 | 1.136 | 300 |
| 3" | 3.500 | 3.042 | .216 | 1.488 | 260 |
| 3-1/2" | 4.000 | 3.521 | .226 | 1.789 | 240 |
| 4" | 4.500 | 3.998 | .237 | 2.188 | 220 |
| 5" | 5.563 | 5.016 | .258 | 2.874 | 190 |
| 6" | 6.625 | 6.031 | .280 | 3.733 | 180 |
| 8" | 8.625 | 7.942 | .322 | 5.619 | 160 |
| 10" | 10.750 | 9.976 | .365 | 7.966 | 140 |
| 12" | 12.750 | 11.889 | ..406 | 10.534 | 130 |
| 14" | 14.000 | 13.073 | .437 | 12.462 | 130 |
| 16" | 16.000 | 14.940 | .500 | 16.286 | 130 |
| 18" | 18.000 | 16.809 | .562 | 20.587 | 130 |
| 20" | 20.000 | 18.743 | .593 | 24.183 | 120 |
| 24" | 24.000 | 22.544 | .687 | 33.652 | 120 |
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One of the most common things people get confused by with pipe is how it is sized and measured. PVC pipe can come in sizes ranging from 1/8" to 24" and larger. The table above shows sizing for schedule 40 PVC pipe in different sizes. Note: PVC pipe under 14" does not match up exactly with its nominal size (See Nominal Pipe Size and O.D. columns). You'll see this table shows the five most common pipe dimensions. Not sure what each of these are? Check our pipe measurement diagram here.
All the fittings we sell on our site are called by their nominal size. A 2" PVC fitting on our site will always fit a piece of 2" nominal size PVC pipe. Both schedule 40 and schedule 80 PVC fittings will fit onto PVC pipe of either schedule. That's because both types of pipe have the same outer diameter measurements. It is only the inner diameter measurement that is smaller on schedule 80 PVC, thus making for a thicker wall and higher pressure rating than sch. 40 pipe.
