| رقم المقياس | BWG (مم) | متري (مم) |
| 8 | 4.191 | 4 |
| 9 | 3.759 | 4 |
| 10 | 3.404 | 3.5 |
| 11 | 3.048 | 3 |
| 12 | 2.769 | 2.8 |
| 13 | 2.413 | 2.5 |
| 14 | 2.108 | 2.5 |
| 15 | 1.829 | 1.8 |
| 16 | 1.651 | 1.65 |
| 17 | 1.473 | 1.4 |
| 18 | 1.245 | 1.2 |
| 19 | 1.067 | 1 |
| 20 | 0.9 | |
| 21 | 0.8128 | 0.8 |
| 22 | 0.7109 | 0.7 |