Needle Sizes
Knitting Needle Size Conversion Chart
Metric Size | US Size | UK Size |
2 mm | 0 | 14 |
2.25 mm | 1 | 13 |
2.5 mm | ||
2.75 mm | 2 | 12 |
3 mm | 11 | |
3.25 mm | 3 | 10 |
3.5 mm | 4 | |
3.75 mm | 5 | 9 |
4 mm | 6 | 8 |
4.5 mm | 7 | 7 |
5 mm | 8 | 6 |
5.5 mm | 9 | 5 |
6 mm | 10 | 4 |
6.5 mm | 10 ½ | 3 |
7 mm | 2 | |
7.5 mm | 1 | |
8 mm | 11 | 0 |
9.0 mm | 13 | 00 |
10 mm | 15 | 000 |
12 mm | 17 | |
15 mm | 19 | |
19 mm | 35 | |
25 mm | 50 |
Crochet Hook Size Conversion Chart - Standard
Metric Size | US Size | UK Size | JPN Size |
2 mm | A-0 | 14 | 0 |
2.25 mm | B-1 | 12 | |
2.5 mm | 12 | 1 | |
2.75 mm | C-2 | 2 | |
3 mm | 11 | 3 | |
3.25 mm | D-3 | 10 | 4 |
3.5 mm | E-4 | 9 | 5 |
3.75 mm | F-5 | 6/7 | |
4 mm | G-6 | 8 | 7 |
4.5 mm | 7 | 7 | 8 |
5 mm | H-8 | 6 | 10 |
5.5 mm | I-9 | 5 | 11 |
6 mm | J-10 | 4 | 13 |
6.5 mm | K-10 ½ | 3 | 15 |
7 mm | 2 | ||
8 mm | L-11 | 0 | |
9 mm | M-13 | 00 | |
10 mm | N-15 | 000 |
approximate
Crochet Hook Size Conversion Chart - Steel
Metric Size | US Size | UK Size | JPN Size |
0.5 mm | 14 | ||
0.6 mm | 12 | ||
0.75 mm | 14 | 10 | |
0.9 mm | 13 | 7 | 8 |
1.00 mm | 12 | 6 ½ | 6 |
1.25 mm | 10 | 5 ½ | 4 |
1.50 mm | 8 | 4 ½ | 2 |
1.75 mm | 6 | 3 ½ | 0 |
2 mm | 4 | 2 ½ | |
2.25 mm | 2 | 1 ½ | |
2.5 mm | |||
2.75 mm | 1 | 1 | |
3 mm | |||
3.25 mm | 0 | 0 | |
3.5 mm | 00 |
approximate