Much like Knitting Needles (and languages), Crochet Hooks are labelled differently in other parts of the world. On this page we have laid out a comparison table detailing the corresponding crochet hook size for each part of the world, particularly useful in understanding which size to use for different patterns.


Hook Size Metric

US Size

UK Size

Hook Size Metric

US Size

UK Size

0.6mm

16

 

4.00mm

G/6

8

0.75mm

14

 

4.50mm

7

7

1.00mm

11

4

5.00mm

H/8

6

1.25mm

10

3

5.50mm

I/9

5

1.5mm

8

2.5

6.00mm

J/10

4

1.75mm

6

2

6.50mm

K/10.5

3

2.00mm

 

14

7.00mm

 

2

2.25mm

B/1

 

8.00mm

L/11

0

2.50mm

 

12

9.00mm

M/N/13

00

2.75mm

C/2

 

10.00mm

N/P/15

000

3.00mm

 

11

12.00mm

O/16

 

3.25mm

D/3

10

15.00mm

P/Q/19

 

3.50mm

E/4

9

19.00mm

S/35

 

3.75mm

F/5

 

20.00mm

 

 


Somewhat be-musingly, Crochet Hook sizes do differ slightly between brands, so the above table may appear slightly wrong, dependent on the brand you are familiar with.

We do hope to make this the best Crochet Hook Size Chart available anywhere on the internet, so if you have any feedback on how we could improve it, please let us know in the comments below.

Source : https://www.knittingco.com.au/blogs/knitting-co-blog/157299399-crochet-hook-size-chart