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Needle and hook sizes

Depending on where you got your pattern from, you might find that the needle or hook sizes aren’t what you expect. This is especially common with older patterns or ones you’ve bought online.

Or maybe you’ve had your needles for a long time and the sizes on them don’t match what you’re finding in modern patterns.

There are actually three different types of sizes, and the chart below will help you convert between them.

Needle sizes

Metric (mm)

UK

USA

2140
2.25131
2.5-1.5
2.75122
311-
3.25103
3.5-4
3.7595
48-
4.25-6
4.577
568
5.559
6410
6.5310.5
72-
7.51-
8011
90013
1000015
12-17

Hook sizes

Metric (mm)

UK

USA

214B/1
2.2513-
2.512C/2
311-
3.2510D/3
3.59E/4
48G/6
4.577
56H/8
5.55I/9
64J/10
6.53K/10.5
72-
80-
900-
10000-

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