Ring Size Chart

 

 

Inside Circumference

US/Canada

British/Irish/Australian

Japanese

French

German

Inches

MM

1.840

46.8

4

H

7

46 1/2

15

1.890

48.0

4.5

I 1/2

8

47 3/4

15 1/2

1.940

49.3

5

J 1/2

9

49

15 3/4

1.990

50.6

5.5

K 1/2

10

50 1/4

16 1/4

2.041

51.8

6

L 1/2

11

51 1/2

16 1/2

2.091

53.1

6.5

M 1/2

13

52 3/4

17

2.141

54.4

7

N 1/2

14

54

17 1/4

2.192

55.7

7.5

O 1/2

15

55 1/4

17 1/2

2.242

56.9

8

P 1/2

16

56 1/2

18

2.292

58.2

8.5

Q 1/2

17

57 3/4

18 1/2

2.342

59.5

9

R 1/2

18

59

19

2.393

60.8

9.5

S 1/2

19

60 1/4

19 1/2

2.443

62.1

10

T 1/2

20

61 1/2

20

2.493

63.3

10.5

U 1/2

22

62 3/4

20 1/2

2.543

64.6

11

V 1/2

23

64

20 3/4

2.594

65.9

11.5

W 1/2

24

65 1/4

21

2.644

67.2

12

X 1/2

25

66 1/2

21 1/4

2.694

68.4

12.5

Z

26

67 3/4

21 3/4

2.744

69.7

13

Z 1

27

69

22

2.795

71

13.5

Z 2

29

 

 

2.845

72.3

14

Z 3

31

 

 

2.895

73.5

14.5

Z 4

32

 

 

2.945

74.8

15

Z 5

33

 

 

2.996

76.1

15.5

Z 6

 

 

 

3.046

77.4

16

Z 7

 

 

 

3.096

78.6

16.5

Z 8

 

 

 

3.146

79.9

17

Z 9

 

 

 

3.197

81.2

17.5

 

 

 

 

3.247

82.5

18

 

 

 

 

3.297

83.7

18.5

 

 

 

 

3.347

85.0

19

 

 

 

 

3.397 

86.3

19.5

 

 

 

 

3.448

87.6

20

 

 

 

 

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