Crochet Hook Conversion Chart

Just as above concerning knitting needles, the table below is a refernce to aid in converting crochet hook sizes.  The metric system, to the best of my knowledge, is generally the sizing system used in Australia.

Please be aware that differ resources, brands and companies as well as patterns may use different sizing methods.  And remember, always do a test swatch if unsure!

METRIC

USA

UK

2.0mm

-

14

2.25mm

1 / B

13

2.50mm

-

12

2.75mm

C

11

3.0mm

-

11

3.25mm

D

10

3.50mm

4 / E

9

3.75mm

F

-

4.0mm

6

8

4.25mm

G

-

4.5mm

7

7

5.0mm

8 / H

6

5.5mm

9 / I

5

6.0mm

10 / J

4

6.5mm

10 / ½ / K

3

7.0mm

-

2

8.0mm

-

0

9.0mm

15 / N

00

10.0mm

P

000