Crochet hook conversion chart

Metric (mm) US US UK/Canadian
2.0 0 14
2.25 B 1 13
2.5 12
2.75 C 2
3.0 11
3.25 D 3 10
3.5 E 4 9
3.75 F 5
4.0 G 6 8
4.5 7 7
5.0 H 8 6
5.5 I 9 5
6.0 J 10 4
6.5 K 10.5 3
7.0 2
8.0 L 11 0
9.0 M 13 00
10.0 N 15 000
15.0 P
16.0 Q
19.0 S