Knitting Needle Conversion Chart
| Metric | US Sizes | UK Sizes | Crochet Hooks |
| 2.00 mm | 0 | 14 | |
| 2.25 mm | 0 | 13 | B |
| 2.50 mm | 1 | - | |
| 2.75 mm | 2 | 12 | |
| 3.00 mm | 2 | 11 | |
| 3.25 mm | 3 | 10 | |
| 3.50 mm | 4 | - | E |
| 3.75 mm | 5 | 9 | |
| 4.00 mm | 6 | 8 | |
| 4.50 mm | 7 | 7 | |
| 5.00 mm | 8 | 6 | |
| 5.50 mm | 9 | 5 | I |
| 6.00 mm | 10 | 4 | J-10 |
| 6.50 mm | 10.5 | 3 | |
| 7.00 mm | - | 2 | |
| 7.50 mm | - | 1 | |
| 8.00 mm | 11 | 0 | L-11 |
| 9.00 mm | 13 | 00 | |
| 10.00 mm | 15 | 000 | |
| 12.00 mm | 17 | - | |
| 15.00 mm | 19 | - | P/Q |
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