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Ring Sizing Standards

Below are the sizing guidelines Captve follows; for any questions regarding ring size, send us an email.

Size: Canada, USA

Iniside Diameter (MM)

Inside Circum. (MM)

AUS, IRL, UK, NZ

IND, CHN, JPN, S.America

IT, ESP, NLD, CHE

4

14.88

46.8

H

7

6.75

4.5

15.29

48

I

8

8

5

15.7

49.3

J 1/2

9

9.25

5.5

16.1

50.6

K 1/2

10

10.5

6

16.51

51.9

L 1/2

11

11.75

6.5

16.92

53.1

M 1/2

13

13.25

7

17.32

54.4

N 1/2

14

14.5

7.5

17.73

55.7

O 1/2

15

15.75

8

18.14

57

P 1/2

16

17

8.5

18.54

58.3

Q 1/2

17

18.25

9

18.95

59.5

R 1/2

18

19.5

9.5

19.35

60.8

S 1/2

19

20.75

10

19.76

62.1

T 1/2

20

22

10.5

20.17

63.4

U 1/2

22

23.25

11

20.57

64.6

V 1/2

23

24.75

11.5

20.98

65.9

W 1/2

24

26

12

21.39

67.2

X 1/2

25

27.25

12.5

21.79

68.5

Z

26

28.5

13

22.2

69.7


27

29.75