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Knitting Needle and Crochet Hook Conversion Charts US / UK/ Metric/ Japanese
Knitting Needles Modern
US
0
    
1
  
2
3
  
4
  
5
  
6
  
7
  
8
    
9
    
10
  
10.5
  
11
13
15
          
UK
14
    
13
  
12
11
10
  
 
9
  
8
  
7
  
6
    
5
    
4
  
3
  
2
1
0
00
000
          
Japan
  
0
1
2
3
4
5
6
7
8
9
10
11
12
  
13
14
15
7mm
8mm
9mm
10mm
          
*Canada
14
13
12
11
10
9
8
7
6
5
 
4
3
2
1
0
00
00
 
Metric
2
2.1
2.4
2.5
2.7
2.75
3
3.25
3.3
3.5
3.6
3.75
3.9
4
4.2
4.5
4.8
5
5.1
5.4
5.5
5.7
  
6
6.3
6.5
6.6
7
7.5
8
9
10
12
16
  
19
25

 

Old Knitting Needles
US
0
1
2
3
4
5
6
7
8
9
  
10
10.5
11
13
15
 17 19 35 50
*European
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
7
7.5
8
9
19
UK
14
13
12
11
10
9
7
6
5
  
4
3
2
1
0
00
000
        
Metric
2
2.5
2.75
3
3.25
3.5
3.75
4
4.5
5
5.5
 5.75
6
6.5
7
7.5
8
9
10
 12.75 15 19 25

 

Knitting Needles by Brand
The numbers in the table represent the USA size it is sold under, but they are under there metric equivalent
Metric
2
2.1
2.25
2.4
2.5
2.7
2.75
3
3.25
3.3
3.5
3.6
3.75
3.9
4
4.2
4.25
4.5
 4.75
4.8
5
5.1
5.25
5.4
5.5
5.7
5.75
6
6.3
6.5
6.6
7
7.5
8
9
10
 12
12.75
15
19
25
Addi Turbo
000
0
 
 
 
1
2
3
4
5
6
7
  
8
9
10
10.5
11
13
 
US Clover
0
1
1
2
3
4
5
6
7
  
8
9
10
10.5
11
13
15
  
Chiaogoo
       1       2   3   4   5       6 7     8       9     10   10.5       11 13    
Crystal Palace*1*
0
1
2
3
4
5
6
7
  
8
9
10
10.5
10.75
11
13
15
  
Blue Sky Alpacas
       1           3                                                        
Brittany Birch
3
4
5
6
7
  
8
8.5
9
10.5
11
13
15
  
17
Bryspun
Flexible
                  3   4   5       6 7     8       9     10   10.5       11 13 15  
17
Denise
Interchangeable
                          5       6 7     8       9     10           11 13 15 17
                      4   5   6           8       9     10   10.5                      
Fiddlestick
       1       2   3   4   5     6   7     8       9     10   10.5       11 13 15  
                      4             7     8       9     10           11      
Inox
0
1
2
3
4
5
6
7
  
8
9
10
10.5
11
13
15
  
Knit Lite
                                           8       9     10   10.5       11 13 10  
Knit Picks
   0   1   1   2 2 3   4   5   6     7     8       9     10   10.5       11      
Phildar
0
1
3
4
5
6
7
  
8
9
17
19
Pony Anodized
0
1
1.5
2
2.5
3
4
5
6
7
  
8
9
 
Pony Pearl
0
1
1.5
2
2.5
3
4
5
5.5
7
  
8
9
10
10.5
10.75
10 7/8
11
13
15
  
Skacel
000
0
 
 
 
2
3
4
5
6
7
  
8
9
10
 
0
1
1
2
2
3
4
5
6
6
7
7
8
9
10
10.5
10.75
11
13
15
19
 
Susan Bates Jumbo
                                                                            
17
19
35
50
Swallow
3
5
6
7
  
8
9
10
10.5
10.75
10 7/8
13
 

*1* Crystal Palace bamboo needles imported from Japan

Aluminum or Plastic Crochet Hooks
US
B
C
D
E
F
G
H
I
J
K
US Clover
2.0
2.5
3.0
3.5
4.5
5.0
5.5
6.0
6.0
U.K.
14
13
12
11
10
9
8
7
6
5
4
2
Metric
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
7.0

 

Steel Crochet Hooks
US
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
00
Susan Bates ® Steelite ®
.9
1.0
1.15
1.25
1.4
1.5
1.6
1.7
              
U.K.
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
1
1/0
2/0
3/0
Metric
.6
.75
1.0
1.25
1.5
1.75
2.0
2.5
3.0
3.5

 

Bamboo Crochet Hooks
US Clover
E
F
G
H
I
J
K
                  
U.K.
                            
Metric
3.5
4.0
4.5
5.0
5.5
6.0
6.5
                  

 

Resources: Plymoth needle sizer, Elegant Knitter Guage, Awillapaconnection, ABC of knitting, Knitting-and, Needles, Yarn Forward, Purple Kitty, about, Easy and Cheap Craft, MoreHouse Farms
* Submitted by Grumpy Bear... Thank you very much for the info.
* Submitted by Anonymous... Thank you very much for the info.