Pipe Tools & Calculators
Kelly ResourcesPipe 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 |
Kelly Pipe is proud to offer a wide variety of convenient, valuable pipe-related services to our clients.
Many of these services are value-added based on the nature of your order.
Blasting
Cutting
Grooving
Beveling
Threading
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Contact one of our sales professionals now to get a competitive quote for any of your pipe needs. We pride ourselves as a reliable supplier of industrial pipe offering over 100 years of superior service. Trust Kelly to meet your needs and exceed your expectations while remaining competitive.