International Ring Sizes Chart

Standard ring sizes

To measure the size of a ring print this form: Download PDF (923Kb). Make sure to set scaling to "None" when you print.

 

Dia. INCH Dia.MM Circ. MM USA
US
British
UK
French
France
German
Germany
Japan
Japan
Swiss
Swiss
.390 9.91   0000          
.422 10.72   00          
.454 11.53   0          
.474 11.95   1/2 A        
482 12.18   3/4 A 1/2        
.487 12.37 38.9 1 B     1  
  12.60 39.6 1 1/4 B 1/2        
503 12.78 40.2 1 1/2 C        
  13.00 40.8 1 3/4 C 1/2        
.520 13.21 41.5 2 D 41 1/2 13 1/2 2 1 1/2
  13.41 42.1 2 1/4 D 1/2        
.536 13.61 42.7 2 1/2 E 42 3/4 13 3/4 3 2 3/4
  13.83 43.4 2 3/4 E 1/2        
553 14.05 44.0 3 F 44 14 4 4
  14.15 44.3 3 1/8 F 1/2        
  14.25 44.6 3 1/4          
  14.36 44.9 3 3/8 G 45 1/4   5 5 1/4
.569 14.45 45.2 3 1/2     14 1/2    
  14.56 45.6 3 5/8 G 1/2     6  
  14.65 45.9 3 3/4 H 46 1/2     6 1/2
.585 14.86 46.5 4 H 1/2   15 7  
  15.04 47.1 4 1/4 I 47 3/4     7 3/4
.601 15.27 47.8 4 1/2 I 1/2   15 1/4 8  
  15.40 48.1 4 5/8 J 49 15 1/2   9
  15.53 48.4 4 3/4        
Dia. INCH Dia.MM Circ. MM US UK France Germany Japan Swiss
.618 15.70 49.0 5 J 1/2   15 3/4 9  
  15.80 49.3 5 1/8 K 50     10
  15.90 49.6 5 1/4          
  16.00 50.0 5 3/8 K 1/2     10  
.634 16.10 50.3 5 1/2 L 51 3/4 16   11 3/4
  16.30 50.9 5 3/4          
  16.41 51.3 5 7/8 L 1/2        
.650 16.51 51.5 6 M 52 3/4 16 1/2 12 12 3/4
  16.71 52.2 6 1/4 M 1/2        
.666 16.92 52.8 6 1/2 N 54 17 13 14
  17.13 53.4 6 3/4 N 1/2        
.683 17.35 54.0 7 O 55 1/4 17 1/4 14 15 1/4
  17.45 54.7 7 1/4 O 1/2        
.699 17.75 55.3 7 1/2 P 56 1/2 17 3/4 15 16 1/2
  17.97 55.9 7 3/4 P 1/2        
.716 18.19 56.6 8 Q 57 3/4 18 16 17 3/4
  18.35 57.2 8 1/4 Q 1/2        
.732 18.53 57.8 8 1/2     18 1/2 17  
  18.61 58.4 8 5/8 R 59     19
  18.69 58.4 8 3/4          
  18.80 59.0 8 7/8 R 1/2        
.748 18.89 59.1 9     19 18  
Dia. INCH Dia.MM Circ. MM US UK France Germany Japan Swiss
  19.10 59.4 9 1/8 S 60 1/4     20 1/4
  19.22 59.7 9 1/4          
  19.31 60.0 9 3/8 S 1/2        
.764 19.41 60.3 9 1/2     19 1/2 19  
  19.51 60.6 9 5/8 T 61 1/2     21 1/2
  19.62 60.9 9 3/4          
.781 19.84 61.6 10 T 1/2   20 20  
  20.02 62.2 10 1/4 U 62 3/4   21 22 3/4
.797 20.20 62.8 10 1/2 U 1/2   20 1/4 22  
  20.32 63.1 10 5/8 V 63     23 3/4
  20.44 63.5 10 3/4          
.814 20.68 64.1 11 V 1/2   20 3/4 23  
  20.76 64.3 11 1/8 W 65     25
  20.85 64.7 11 1/4          
  20.94 65.0 11 3/8 W 1/2        
  21.08 65.3 11 1/2     21 24  
.830 21.18 65.7 11 5/8 X 66 1/4     26 1/4
  21.24 66.0 11 3/4          
  21.30 66.3 11 7/8 X 1/2        
.846 21.49 66.6 12 Y 67 1/2 21 1/4 25 27 1/2
  21.69 67.2 12 1/4 Y 1/2        
.862 21.89 67.9 12 1/2 Z 68 3/4 21 3/4 26 28 3/4
  22.10 68.5 12 3/4 Z 1/2        
.879 22.33 69.1 13     22 27