Needle & Hook Sizes Information

• Knitting Needle Size
• Crochet Hook Size
• Steel Crochet Hook Size

Metric Size	US Size	UK Size
2 mm	0	14
2.25 mm	1	13
2.5 mm
2.75 mm	2	12
3 mm		11
3.25 mm	3	10
3.5 mm	4
3.75 mm	5	9
4 mm	6	8
4.5 mm	7	7
5 mm	8	6
5.5 mm	9	5
6 mm	10	4
6.5 mm	10 ½	3
7 mm		2
7.5 mm		1
8 mm	11	0
9.0 mm	13	0
10 mm	15	0
12 mm	17
15 mm	19
19 mm	35
25 mm	50

Metric Size	US Size	UK Size	JPN Size
2 mm	A-0	14	0
2.25 mm	B-1	12
2.5 mm		12	1
2.75 mm	C-2		2
3 mm		11	3
3.25 mm	D-3	10	4
3.5 mm	E-4	9	5
3.75 mm	F-5		6.5
4 mm	G-6	8	7
4.5 mm	7	7	8
5 mm	H-8	6	10
5.5 mm	I-9	5	11
6 mm	J-10	4	13
6.5 mm	K-10 ½	3	15
7 mm		2
8 mm	L-11	0
9 mm	M-13	0
10 mm	N-15	0

Metric Size	US Size	UK Size	JPN Size
0.5 mm			14
0.6 mm			12
0.75 mm	14		10
0.9 mm	13	7	8
1.00 mm	12	6 ½	6
1.25 mm	10	5 ½	4
1.50 mm	8	4 ½	2
1.75 mm	6	3 ½	0
2 mm	4	2 ½
2.25 mm	2	1 ½
2.5 mm
2.75 mm	1	1
3 mm
3.25 mm	0	0
3.5 mm	0