§ 51.653 Metric conversion table.
Current through Jul 29, 2026 · Read all of Part 51
| Inches | Millimeters (mm) |
|---|---|
| 1/4 equals | 6.4 |
| 3/8 equals | 9.5 |
| 1/2 equals | 12.7 |
| 9/16 equals | 14.3 |
| 5/8 equals | 15.9 |
| 3/4 equals | 19.1 |
| 7/8 equals | 22.2 |
| 1 equals | 25.4 |
| 1 1/4 equals | 31.8 |
| 1 1/2 equals | 38.1 |
| 3 equals | 76.2 |
| 3 2/16 equals | 79.4 |
| 3 6/16 equals | 85.7 |
| 3 8/16 equals | 88.9 |
| 3 10/16 equals | 92.1 |
| 3 13/16 equals | 96.8 |
| 3 14/16 equals | 98.4 |
| 3 15/16 equals | 100.0 |
| 4 2/16 equals | 104.8 |
| 4 5/16 equals | 109.5 |
| 4 8/16 equals | 114.3 |
| 4 12/16 equals | 120.7 |
| 5 equals | 127.0 |