Crochet Hook Size Conversion

Metric (mm) UK US Japanese
2 14 2/0
2.25 13 B/1 3/0
2.5 12 4/0
2.75 C/2
3 11 5/0
3.25 10 D/3
3.5 9 E/4 6/0
3.75 F/5
4 8 G/6 7/0
4.5 7 7
5 6 H/8 8/0
5.5 5 I/9
6 4 J/10 10/0
6.5 3 K/10 1/2
7 2
8 0 L/11
9 00 M/13
10 000 N/15
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