Crochet Hook Conversion Chart

UK English US English Metric
14 B/1 2mm
13 - 2.25mm
12 C/2 2.5mm
11 - 3mm
10 D/3 3.25mm
9 E/4 3.5mm
8 G/6 4mm
7 7 4.5mm
6 H/8 5mm
5 I/9 5.5mm
4 J/10 6mm
3 K/10.5 6.5mm
2 - 7mm
0 L/11 8mm
00 M/13 9mm
000 N/15 10mm
- O/16 12mm
- P/19 15mm
- Q 16mm
- R 17.5mm
- S/35 19mm