Crochet Hook Size Conversions:

STEEL HOOKS

US	English	Continental-mm
		Boye	Susan Bates	Clover	Addi
00	-	3.5	2.70	1.75	3.5
0	-	3.25	2.55		3.0
1	3/0	2.75	2.35		2.5
2	2/0	2.25	2.20	1.5
3	1/0	2.1	2.1
4	1	2.0	1.75	1.25	2.0
5	1 1/2	1.9	1.7
6	2	1.8	1.6	1.00	1.75
7	2 1/2	1.65	1.5
8	3	1.5	1.4	.90	1.50
9	4	1.4	1.25
10	5	1.3	1.15	.75	1.25
11	5 1/2	1.1	1.05
12	6	1.0	1.0	.60	1.00
13	6 1/2	.85	.95
14	7	.75	.9		.75
16					.60

US		English	Boye	Susan Bates	Brittany	Clover	Addi
							2.00
B	1	12	2.25	2.25	-	2.3	2.5
C	2	11	2.75	2.75	-	2.5	3.0
D	3	10	3.25	3.25	3.25	3.0	3.25
E	4	9	3.5	3.5	3.5	3.5	3.5
F	5	8	3.75	3.75	3.75	4.0	4.0
-	5 1/2	-	-	-	4.0
G	6	7	4.25	4.0	4.25	4.5	4.5
G 1/2	7	-	-	4.75	4.5
H	8	6	5.0	5.0	5.0	5.25	5.0
I	9	5	5.5	5.5	5.25	5.5	5.5
J	10	4	6.0	6.0	5.75	6.0	6.0
K	10 1/2	2	6.5	6.5	6.5		7.0
L	11	-	-	-	8.0		8.0
M	13	-	-	9.0/9.25	9.0
N	15	-	9.0	10.0	-		10.0
P	.	.	10.0	11.5	-		16.0
Q	-	-	15.75	16.0	-
S	-	-	-	19.0	-