Knitting Needle Size Guide Chart of Metric vs US / UK / Canada Knitting Needle Sizes*:
| 2.0 mm | 0 | 14 |
| 2.25 mm | 1 | 13 |
| 2.75 mm | 2 | 12 |
| 3.0 mm | — | 11 |
| 3.25 mm | 3 | 10 |
| 3.5 mm | 4 | — |
| 3.75 mm | 5 | 9 |
| 4.0 mm | 6 | 8 |
| 4.5 mm | 7 | 7 |
| 5.0 mm | 8 | 6 |
| 5.5 mm | 9 | 5 |
| 6.0 mm | 10 | 4 |
| 6.5 mm | 10.5 | 3 |
| 7.0 mm | — | 2 |
| 7.5 mm | — | 1 |
| 8.0 mm | 11 | 0 |
| 9.0 mm | 13 | 00 |
| 10.0 mm | 15 | 000 |
| 12.0 mm | 17 | — |
| 15.0 mm | 19 | — |
| 19.0 mm | 35 | — |
| 25.0 mm | 50 | — |
*Trust the millimeter (mm) size as the letter / number can vary by manufacturer.
