Sizing Guide

In the product description British sizing is used.

Not all rings can be sized. If you require one of our products to be sized, no more than 5 sizes up or down, a quote will be sent by email and the price of the sizing will be added to the ring. If the ring is returned (see Returns and Exchanges) the price of the sizing will be deducted from the refund.

International Ring Size Conversion Chart

Every country and brand use different ring size conversions, please see our helpful guide to convert your measurements

 

Inside Diameter Inside Circumference Sizes
MM Inches MM Inches British & Australian US & Canada French & Russian German Japanese Swiss

11.95

0.474

37.54

1.49

A

 

–

–

–

–

12.18

0.482

38.26

1.51

A 1/2

 

–

–

–

–

12.37

0.487

38.86

1.53

B

1

–

–

1

–

12.6

0.496

39.58

1.56

B 1/2

1 1/4

–

–

–

–

12.78

0.503

40.15

1.58

C

1 1/2

–

–

–

–

13

0.512

40.84

1.61

C 1/2

1 3/4

–

–

–

–

13.21

0.52

41.5

1.63

D

2

41 1/2

13 1/2

2

1 1/2

13.41

0.528

42.13

1.66

D 1/2

2 1/4

–

–

–

–

13.61

0.536

42.76

1.68

E

2 1/2

42 3/4

13 3/4

3

2 3/4

13.83

0.544

43.45

1.71

E 1/2

2 3/4

–

–

–

–

14.05

0.553

44.14

1.74

F

3

44

14

4

4

14.15

0.557

44.45

1.75

F 1/2

3 1/8

–

–

–

–

14.25

0.561

44.77

1.76

F 3/4

3 1/4

–

–

–

–

14.36

0.565

45.11

1.77

G

3 3/8

45 1/4

–

5

5 1/4

14.45

0.569

45.4

1.79

G 1/4

3 1/2

–

14 1/2

–

–

14.56

0.573

45.74

1.8

G 1/2

3 5/8

–

–

6

–

14.65

0.577

46.02

1.81

H

3 3/4

46 1/2

–

–

6 1/2

14.86

0.585

46.68

1.84

H 1/2

4

–

15

7

–

15.04

0.592

47.25

1.86

I

4 1/4

47 3/4

–

–

7 3/4

15.27

0.601

47.97

1.89

I 1/2

4 1/2

–

15 1/4

8

–

15.4

0.606

48.38

1.9

J

4 5/8

49

15 1/2

–

9

15.53

0.611

48.79

1.92

J 1/4

4 3/4

–

–

–

–

15.7

0.618

49.32

1.94

J 1/2

5

–

15 3/4

9

–

15.8

0.622

49.64

1.95

K

5 1/8

50

–

–

10

15.9

0.626

49.95

1.97

K 1/4

5 1/4

–

–

–

–

16

0.63

50.27

1.98

K 1/2

5 3/8

–

–

10

–

16.1

0.634

50.58

1.99

L

5 1/2

51 3/4

16

–

11 3/4

16.3

0.642

51.21

2.02

L 1/4

5 3/4

–

–

–

–

16.41

0.646

51.55

2.03

L 1/2

5 7/8

–

–

–

–

16.51

0.65

51.87

2.04

M

6

52 3/4

16 1/2

12

12 3/4

16.71

0.658

52.5

2.07

M 1/2

6 1/4

–

–

–

–

16.92

0.666

53.16

2.09

N

6 1/2

54

17

13

14

17.13

0.674

53.82

2.12

N 1/2

6 3/4

–

–

–

–

17.35

0.683

54.51

2.15

O

7

55 1/4

17 1/4

14

15 1/4

17.45

0.687

54.82

2.16

O 1/2

7 1/4

–

–

–

–

17.75

0.699

55.76

2.2

P

7 1/2

56 1/2

17 3/4

15

16 1/2

17.97

0.707

56.45

2.22

P 1/2

7 3/4

–

–

–

–

18.19

0.716

57.15

2.25

Q

8

57 3/4

18

16

17 3/4

18.35

0.722

57.65

2.27

Q 1/2

8 1/4

–

–

–

–

18.53

0.729

58.21

2.29

Q 3/4

8 1/2

–

18 1/2

17

–

18.61

0.733

58.47

2.3

R

8 5/8

59

–

–

19

18.69

0.736

58.72

2.31

R 1/4

8 3/4

–

–

–

–

18.8

0.74

59.06

2.32

R 1/2

8 7/8

–

–

–

–

18.89

0.748

59.34

2.35

R 3/4

9

–

19

18

–

19.1

0.752

60

2.36

S

9 1/8

60 1/4

–

–

20 1/4

19.22

0.757

60.38

2.38

S 1/4

9 1/4

–

–

–

–

19.31

0.76

60.66

2.39

S 1/2

9 3/8

–

–

–

–

19.41

0.764

60.98

2.4

S 3/4

9 1/2

–

19 1/2

19

–

19.51

0.768

61.29

2.41

T

9 5/8

61 1/2

–

–

21 1/2

19.62

0.772

61.64

2.43

T 1/4

9 3/4

–

–

–

–

19.84

0.781

62.33

2.45

T 1/2

10

–

20

20

–

20.02

0.788

62.89

2.48

U

10 1/4

62 3/4

–

21

22 3/4

20.2

0.797

63.46

2.5

U 1/2

10 1/2

–

20 1/4

22

–

20.32

0.8

63.84

2.51

V

10 5/8

63

–

–

23 3/4

20.44

0.805

64.21

2.53

V 1/4

10 3/4

–

–

–

–

20.68

0.814

64.97

2.56

V 1/2

11

–

20 3/4

23

–

20.76

0.817

65.22

2.57

W

11 1/8

65

–

–

25

20.85

0.821

65.5

2.58

W 1/4

11 1/4

–

–

–

–

20.94

0.824

65.78

2.59

W 1/2

11 3/8

–

–

–

–

21.08

0.83

66.22

2.61

W 3/4

11 1/2

–

21

24

–

21.18

0.834

66.54

2.62

X

11 5/8

66 1/4

–

–

26 1/4

21.24

0.836

66.73

2.63

X 1/4

11 3/4

–

–

–

–

21.3

0.839

66.92

2.64

X 1/2

11 7/8

–

–

–

–

21.49

0.846

67.51

2.66

Y

12

67 1/2

21 1/4

25

27 1/2

21.69

0.854

68.14

2.68

Y 1/2

12 1/4

–

–

–

–

21.89

0.862

68.77

2.71

Z

12 1/2

68 3/4

21 3/4

26

28 3/4