Crochet Hook Conversion Tool

Metric                                         USA                                          UK                              Japan

0.60mm	14 steel	6	10
0.70mm	12 steel	5	6
0.75mm	13 steel		8
0.80mm	11 steel
1.00mm	10 steel	4	4
1.25mm	8 steel	3
1.50mm	7 steel	2.5
1.75mm	5 steel	2
2.00mm	0	14	2
2.25mm	B/1	13	3/0
2.50mm	C/2
2.75mm	C/2		5/0
3.00mm	D/3	11
3.25mm	D/3	10
3.50mm	E/4	9	6/0
3.75mm	F/5
4.00mm	G/6	8	7/0
4.25mm	G/6
4.50mm	7	7	7.5/0
5.00mm	H/8	6	8/0
5.50mm	I/9	5
6.00mm	J/10	4	10/0
6.50mm	K/10.5	3
7.00mm		2	Jumbo 7
8.00mm	L/11	0	Jumbo 8
9.00mm	M/13	00	Jumbo 9
10.00mm	N/15	000	Jumbo 10
15.00mm	P/16		Jumbo 15
16.00mm	Q
19.00mm	S		Jumbo 20