Needle Size Conversion Guides
We all hate doing it, but remember to do a tension swatch when using any yarns, as we all knit/crochet differently, and any guides on yarns are only approximations. This could save hours of work and also disappointment.
Knitting Needle and Crochet Needle conversion guides below:
Knitting Needles:
| Metric Size
mm |
UK / Canadian
Size |
US
Size |
| 2.0 | 14 | 0 |
| 2.25 | 13 | 1 |
| 2.75 | 12 | 2 |
| 3.0 | 11 | – |
| 3.25 | 10 | 3 |
| 3.5 | – | 4 |
| 3.75 | 9 | 5 |
| 4.0 | 8 | 6 |
| 4.5 | 7 | 7 |
| 5.0 | 6 | 8 |
| 5.5 | 5 | 9 |
| 6.0 | 4 | 10 |
| 6.5 | 3 | 10.5 |
| 7.0 | 2 | – |
| 7.5 | 1 | – |
| 8.0 | 0 | 11 |
| 9.0 | 00 | 13 |
| 10.0 | 000 | 15 |
| 12.0 | – | 17 |
| 16.0 | – | 19 |
| 19.0 | – | 35 |
| 25.0 | – | 50 |
Crochet Needles:
|
Metric Size mm |
UK / Canadian Size |
US Size |
| 2.0 | 14 | – |
| 2.25 | 13 | B/1 |
| 2.5 | 12 | – |
| 2.75 | – | C/2 |
| 3.0 | 11 | – |
| 3.25 | 10 | D/3 |
| 3.5 | 9 | E/4 |
| 3.75 | – | F/5 |
| 4.0 | 8 | G/6 |
| 4.5 | 7 | 7 |
| 5.0 | 6 | H/8 |
| 5.5 | 5 | I/9 |
| 6.0 | 4 | J/10 |
| 6.5 | 3 | K/10 1/2 |
| 7.0 | 2 | – |
| 8.0 | 0 | L/11 |
| 9.0 | 00 | M/13 |
| 10.0 | 000 | N/15 |
