Ring Size Chart

Use this ring size chart to find your ring size based on your own finger measurement, or to convert your size to US from other countries.

Inside circumference (mm)

Ring Diameter (mm)

US Size

UK/Australia

European Size

German Size

Swiss Size

42.9

14

3

F

44

14

4

45.5

14.4

3.5

G

45.25

14.5

5.25

46.8

14.8

4

H

46.5

15

6.5

48

15.2

4.5

I

47.75

15.5

7.75

49.3

15.6

5

J 1/2

49

15.75

9

50.6

16

5.5

K 1/2

50.25

16.25

10.25

51.9

16.5

6

L 1/2

51.5

16.5

11.5

53.1

16.9

6.5

M 1/2

52.75

17

12.75

54.4

17.3

7

N 1/2

54

17.25

14

55.7

17.7

7.5

O 1/2

55.25

17.75

15.25

57

18.2

8

P 1/2

56.5

18

16.5

58.3

18.6

8.5

Q 1/2

57.75

18.5

17.75

59.5

19

9

R 1/2

59

19

19

60.8

19.4

9.5

S 1/2

60.25

19.5

20.25

62.1

19.8

10

T 1/2

61.5

20

21.25

63.4

20.2

10.5

U 1/2

62.75

20.5

22.75

64.6

20.6

11

V 1/2

64

20.75

24

65.9

21

11.5

W 1/2

65.25

21

25.25

67.2

21.4

12

X 1/2

66.5

21.25

26.5

68.5

21.8

12.5

Z

67.75

21.75

27.75

69.7

22.2

13

Z+1

69

22

29

72

22.6

13.5

Z+2

71

22.6

31

74

23

14

Z+3

74

23

34

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