Easy
How To Find a Ring Size That Will Fit You

Ring Sizes

Below is a complete international conversion chart for jewelry rings. Gold rings can be resized but if it is bezel set please ask the seller first to make sure they can re size. Most silver rings are to expensive to re size size so please check your ring ring on this chart.

rings

Inside diameter

Inside circumference

Sizes

(in)

(mm)

(in)

(mm)

United States and Canada

United Kingdom, Ireland, and Australia

Japan

Switzerland

0.458

11.63

1.44

36.5

0

0.466

11.84

1.46

37.2

1/4

0.474

12.04

1.49

37.8

1/2

A

0.482

12.24

1.51

38.5

3/4

A 1/2

0.49

12.45

1.54

39.1

1

B

1

0.498

12.65

1.56

39.7

1 1/4

B 1/2

0.506

12.85

1.59

40.4

1 1/2

C

0.514

13.06

1.61

41.0

1 3/4

C 1/2

0.522

13.26

1.64

41.7

2

D

2

1.5

0.53

13.46

1.67

42.3

2 1/4

D 1/2

0.538

13.67

1.69

42.9

2 1/2

E

3

2.75

0.546

13.87

1.72

43.6

2 3/4

E 1/2

0.554

14.07

1.74

44.2

3

F

4

4

0.562

14.27

1.77

44.8

3 1/4

F 1/2

5

5.25

0.57

14.48

1.79

45.5

3 1/2

G

0.578

14.68

1.82

46.1

3 3/4

G 1/2

6

6.5

0.586

14.88

1.84

46.8

4

H

7

0.594

15.09

1.87

47.4

4 1/4

H 1/2

7.75

0.602

15.29

1.89

48.0

4 1/2

I

8

0.61

15.49

1.92

48.7

4 3/4

J

9

0.618

15.70

1.94

49.3

5

J 1/2

9

0.626

15.90

1.97

50.0

5 1/4

K

10

0.634

16.10

1.99

50.6

5 1/2

K 1/2

10

0.642

16.31

2.02

51.2

5 3/4

L

11.75

0.65

16.51

2.04

51.9

6

L 1/2

11

12.75

0.658

16.71

2.07

52.5

6 1/4

M

12

0.666

16.92

2.09

53.1

6 1/2

M 1/2

13

14

0.674

17.12

2.12

53.8

6 3/4

N

0.682

17.32

2.14

54.4

7

N 1/2

14

15.25

0.69

17.53

2.17

55.1

7 1/4

O

0.698

17.73

2.19

55.7

7 1/2

O 1/2

15

16.5

0.706

17.93

2.22

56.3

7 3/4

P

0.714

18.14

2.24

57.0

8

P 1/2

16

17.75

0.722

18.34

2.27

57.6

8 1/4

Q

0.73

18.54

2.29

58.3

8 1/2

Q 1/2

17

0.738

18.75

2.32

58.9

8 3/4

R

19

0.746

18.95

2.34

59.5

9

R 1/2

18

0.754

19.15

2.37

60.2

9 1/4

S

20.25

0.762

19.35

2.39

60.8

9 1/2

S 1/2

19

0.77

19.56

2.42

61.4

9 3/4

T

21.5

0.778

19.76

2.44

62.1

10

T 1/2

20

0.786

19.96

2.47

62.7

10 1/4

U

21

0.794

20.17

2.49

63.4

10 1/2

U 1/2

22

22.75

0.802

20.37

2.52

64.0

10 3/4

V

0.81

20.57

2.54

64.6

11

V 1/2

23

0.818

20.78

2.57

65.3

11 1/4

W

25

0.826

20.98

2.59

65.9

11 1/2

W 1/2

24

0.834

21.18

2.62

66.6

11 3/4

X

0.842

21.39

2.65

67.2

12

X 1/2

25

27.5

0.85

21.59

2.67

67.8

12 1/4

Y

0.858

21.79

2.70

68.5

12 1/2

Z

26

28.75

0.866

22.00

2.72

69.1

12 3/4

Z 1/2

0.874

22.20

2.75

69.7

13

27

0.882

22.40

2.77

70.4

13 1/4

Z1

0.89

22.61

2.80

71.0

13 1/2

0.898

22.81

2.82

71.7

13 3/4

Z2

0.906

23.01

2.85

72.3

14

Z3

0.914

23.22

2.87

72.9

14 1/4

0.922

23.42

2.90

73.6

14 1/2

Z4

0.93

23.62

2.92

74.2

14 3/4

0.938

23.83

2.95

74.8

15

0.946

24.03

2.97

75.5

15 1/4

0.954

24.23

3.00

76.1

15 1/2

0.962

24.43

3.02

76.8

15 3/4

0.97

24.64

3.05

77.4

16

Like Our Blogs? Sign Up For Email Notifications

Check Out Our Beautiful Rings

Was this article helpful?

1 person found this article helpful
Buying Jewelry

Buying Jewelry

Everything you need to know about Jewelry
45 articles
Jewelry How To's

Jewelry How To's

Ever wondered how to...
9 articles
Trending Jewelry News

Trending Jewelry News

What's new in the world of all things sparkly
10 articles

Hello! Jewelry Auctioned is an international marketplace offering discount quality Jewelry from professional Jewellers & manufacturers. Register for $10 off your first purchase.