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Knitting Needle Conversion Chart

Compare US, UK, and Canadian Needle Sizes at a Glance

Metric (mm)
US Size
UK/Canadian Size
2.0 mm
0
14
2.25 mm
1
13
2.5 mm
1.5
-
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
10.5
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
-
15.0 mm
19
-
20.0 mm
36
-
25.0 mm
50
-
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