Knitting needle size chart

Needle sizes are measured by diameter in millimeters. US needles use numbers, old UK needles count the other way round.

mm	US	UK (old)
2.0 mm	0	14
2.25 mm	1	13
2.75 mm	2	12
3.0 mm	–	11
3.25 mm	3	10
3.5 mm	4	–
3.75 mm	5	9
4.0 mm	6	8
4.5 mm	7	7
5.0 mm	8	6
5.5 mm	9	5
6.0 mm	10	4
6.5 mm	10½	3
7.0 mm	–	2
7.5 mm	–	1
8.0 mm	11	0
9.0 mm	13	00
10.0 mm	15	000
12.0 mm	17	–
16.0 mm	19	–
19.0 mm	35	–
25.0 mm	50	–

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