Pipe Size Metric Conversions
| PIPE SIZE METRIC CONVERSION TABLE |
| DIAMETER |
| NOMINAL SIZE |
OD |
| mm |
Inches |
mm |
Inches |
| 3 | 1/8 |
10.3 | .405 |
| 6 | 1/4 |
13.7 | .540 |
| 10 | 3/8 |
17.1 | .675 |
| 13 | 1/2 |
21.3 | .840 |
| 19 | 3/4 |
26.7 | 1.050 |
| 25 | 1 |
33.4 | 1.315 |
| | |
| |
| 32 | 1 1/4 |
42.2 | 1.660 |
| 40 | 1 1/2 |
48.3 | 1.900 |
| 50 | 2 |
60.3 | 2.375 |
| 65 | 2 1/2 |
73.0 | 2.875 |
| 80 | 3 |
88.9 | 3.500 |
| 90 | 3 1/2 |
101.6 | 4.000 |
| | |
| |
| 100 | 4 |
114.3 | 4.500 |
| 125 | 5 |
141.3 | 5.563 |
| 150 | 6 |
168.3 | 6.625 |
| 200 | 8 |
219.1 | 8.625 |
| 250 | 10 |
273.0 | 10.750 |
| 300 | 12 |
323.8 | 12.750 |
| | |
| |
| 350 | 14 |
355.6 | 14.000 |
| 400 | 16 |
406.4 | 16.000 |
| 460 | 18 |
457.2 | 18.000 |
| 510 | 20 |
508.0 | 20.000 |
| 560 | 22 |
558.8 | 22.000 |
| 610 | 24 |
609.6 | 24.000 |
| 660 | 26 |
660.4 | 26.000 |