Knitting Needle Sizes
From KnitWiki
US, Metric and Old UK Sizes
Needle conversions are to the nearest .25mm
For instance, US size 6 needles are actually 4.25mm but since there is no metric needle size 4.25mm the closest size, 4mm, is the best equivalent. Since you should always check your gauge before commencing your garment this shouldn't cause any problems.
| US | Metric | Old UK |
|---|---|---|
| 000 | 1.5mm | |
| 00 | 1.75mm | |
| 0 | 2mm | 14 |
| 1 | 2.25mm | 13 |
| 2.5mm | ||
| 2 | 2.75mm | 12 |
| 3mm | 11 | |
| 3 | 3.25mm | 10 |
| 4 | 3.5mm | |
| 5 | 3.75mm | 9 |
| 6 | 4mm | 8 |
| 7 | 4.5mm | 7 |
| 8 | 5mm | 6 |
| 9 | 5.5mm | 5 |
| 10 | 6mm | 4 |
| 10 ½ | 6.5mm | 3 |
| 7mm | 2 | |
| 7.5mm | 1 | |
| 11 | 8mm | 0 |
| 13 | 9mm | 00 |
| 15 | 10mm | 000 |
Japanese Needle Sizes
0 = 2.1mm
1 = 2.4mm
2 =2.7mm
3 = 3.0mm
4 = 3.3mm
5 =3.6mm
6 = 3.9mm
7 = 4.2mm
8 = 4.5mm
9 = 4.8mm
10 = 5.1mm
11 = 5.4mm
12 = 5.7mm
13 = 6.0mm
14 = 6.3mm
15 = 6.6mm
