Knitting Needle Sizes: US, UK and Metric
| Metric | US | UK / Canada |
| 2.00 | 0 | 14 |
| 2.25 | 1 | 13 |
| 2.50 | - | - |
| 2.75 | 2 | 12 |
| 3.00 | - | 11 |
| 3.25 | 3 | 10 |
| 3.50 | 4 | - |
| 3.75 | 5 | 9 |
| 4.00 | 6 | 8 |
| 4.50 | 7 | 7 |
| 5.00 | 8 | 6 |
| 5.50 | 9 | 5 |
| 6.00 | 10 | 4 |
| 6.50 | 10.5 | 3 |
| 7.00 | - | 2 |
| 7.50 | - | 1 |
| 8.00 | 11 | 0 |
| 9.00 | 13 | 00 |
| 10.00 | 15 | 000 |
| 12.00 | 17 | - |
| 16.00 | 19 | - |
| 19.00 | 35 | - |
| 25.00 | 50 | - |