Ring sizes

Ring sizes contains large and small ring sizes chart of American, British, Russian, Japanese sizes, diameter in millimeters and inches, or finger circumference.

 

 

Diameter
(inches)
Diameter
(mm)
finger
circumference
(mm)
Russian UK US Japanese
0.553 14.05 44 14 F 3 4
0.569 14.4 45.2 14 1/2   3 1/2  
0.585 14.8 46.5 15 H 1/2 4 7
0.601 15.3 47.8 15 1/2 I 1/2 4 1/2 8
0.618 15.7 49 15 3/4 J 1/2 5 9
  15.9 50 16 K 5 1/4 9
0.634 16.1 50.3 16 1/3 L 5 1/2 10
  16.3 51.2 16 1/2 L 5 3/4 11
0.65 16.5 51.5 16 2/3 M 6 12
  16.7 52.5 17 M 6 1/4 12
0.666 16.9 52.8 17 1/9 N 6 1/2 13
  17.1 53.8 17 1/4 N 6 3/4  
0.683 17.3 54 17 1/2 O 7 14
  17.5 55.1 17 3/4 O 7 1/4  
0.699 17.7 55.3 17 8/9 P 7 1/2 15
  17.9 56.3 18 P 7 3/4  
0.716 18.2 56.6 18.3 Q 8 16
  18.3 57.6 18 1/2 Q 8 1/4  
0.732 18.5 57.8 18 2/3 Q 1/2 8 1/2 17
  18.7 58.9 19 R 8 3/4  
0.748 18.9 59.1 19.1 R 1/2 9 18
  19.1 60.2 19 1/3 S 9 1/4  
0.764 19.3 60.3 19 1/2 S 1/2 9 1/2 19
  19.5 61.4 20 T 9 3/4  
0.781 19.8 61.6 20 1/4 T 1/2 10 20
0.798 20.2 62.8 20 1/3 U 1/2 10 1/2 22
  20.3 64 20 3/4 V 10 3/4  
0.814 20.7 64.1 21 V 1/2 11 23
  21 65.3 21 1/4 W 11 1/2 24
0.846 21.2 66.6 21 3/4 W 1/2 12 25
0.862 21.9 67.9   Z 12 1/2 26