Crochet Hooks – Needle Size Translator

Crochet hooks are available in different needle sizes. But that´s not all, because there are also different systems for the names of needle sizes for crochet hook. This way it can happen, that your crochet hook or the crochet pattern is from another country and you cant understand the called the needle size.

To prevent this happening to you, you will find here a translation of the different needle sizes into the different systems. So you can use any crochet hook and read any crochet pattern, even if there is a “strange” name for the needle size.

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Size Chart: Crochet Hooks in different Needle Sizes

Metric British Alphabetic Numeric Bamboo Size
Germany Canada, England USA USA Japan
10 steel
1.0 mm
1.25 mm 16 8 steel 000
1.25 mm
1.5 mm 15 7 steel
00 1.5 mm
1.75 mm 14 5 steel
1.75 mm
2 mm 0 2.0 mm
0 2.1 mm
2.25 mm 13 B 1 2.25 mm
1 2.4 mm
2.5 mm 12 1 1/2 2.5 mm
2 2.7 mm
2.75 mm C 2 2.75 mm
3 mm 11 2 1/2 3 3.0 mm

10 D 3 3.25 mm
4 3.3 mm
3.5 mm E 4 3.5 mm
5 3.6 mm
9 F 5 3.75 mm
6 3.9 mm
4 mm 8 G 4.0 mm
7 4.2 mm
6 4.25 mm
4.5 mm 7 7 8 4.5 mm
9 4.8 mm
5 mm 6 H 8 5.0 mm
10 5.1 mm
11 5.4 mm
5.5 mm 5 I 9 5.5 mm
12 5.7 mm
6 mm 4 J 10 13 6.0 mm
14 6.3 mm
6.5 mm 3 K 10 1/2
6.5 mm
15 6.6 mm
7 mm 2 7 mm 7.0 mm
1 7.5 mm
8 mm 0 L 11 8 mm 8.0 mm
9 mm 00 M 13 9 mm 9.0 mm
10 mm 000 N 15 10 mm 10.0 mm
15 mm P, Q 15.0 mm