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Hook Size Charts

The chart below may help you determin the size of the hook you’re holding. Sizes are approximate, especially the larger sizes, as they vary from manufacturer to manufacturer. They also change over time. Lengths vary depending on what type of hook it is. This is one reason to check gauge on projects where size matters as an older hook might be a different size in millimeters than a newer one.

“Letter Size”

“Number Size”

Size in Millimeters

A

?

2.0

B

1

2.25/2.5

C

2

2.75/3.0

D

3

3.25

E

4

3.5

F

5

3.75/4.0

G

6

4.0/4.25

7*

7

4.5

H

8

5.0

I

9

5.5

J

10

6

K

10 1/2

6.5

L

11

8

M/N

13

9

N/P

15

10

O

 

12

in between size

Turn of the Century

13

P

16

15

Q

 

15.75/16

S

35

19/20

T

 

22

U

 

25

V

 

28

W

 

31

Here are the steel hook sizes. U.K. sizes from Purple Kitty Yarns and verified at other sites. Susan Bates hooks seem to have a slightly different measurement for steel hooks. If you need a particular mm for your project, be sure to check size first.

Hook

MM - U.S.

U.K. Hook

00

3.5

 

0

3.25

0

1

2.75

1

2

2.25

1.5

3

2.1

2

4

2.0

2.5

5

1.9

3

6

1.8

3.5

7

1.65

4

8

1.5

4.5

9

1.4

5

10

1.3

5.5

11

1.1

6

12

1.0

6.5

13

.85

7

14

.75

 

Here is a size chart for MoEZ hooks. They are larger hooks.

Hook Name

Inches/MM

Length

Green

5/16th" (8mm)

9" and 18"

Black

3/8th" (9.5mm)

9" and 18"

Red

7/16th" (11.1mm)

9" and 18"

Yellow

1/2" (12.7mm)

9" and 18"

Super Blue

5/8" (15.9mm)

9" and 18"

Super Orange

3/4" (19mm)

9" and 18"

Ultra Maroon

7/8"

9" and 18"

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Crochet Cabana uses American crochet terminology.
For UK/Australia terms & international symbols, click here.

Copyright 1997 - 2016 by Sandra Petit. All rights reserved.

Crochet Cabana created October 1997 (domain name purchased March 2001)
Crochet Cabana’s Crafty Corral begun November 7, 2004.
The Crochet Cabana Blog begun May 2010.
Site update November 18, 2012.