Ring Size Conversion

Measuring Your Finger

Comfort is the goal.  You may want to wear the ring more or less permanently, in different seasons, in different weather, and so on.  The ring should be snug enough so it won’t slip off as you swing your hand, but loose enough that it won’t get stuck on your knuckle when you want to take it off.

Cold Temperatures

If you are new to wearing rings (men about to get married, pay attention here!), there are going to be some extremes when even a great fitting ring will become at risk of falling off.  The number of guys who loose their wedding ring on their honeymoon is astronomical!  This usually happens at the beach because your hand shrinks a bit in the water, in addition to the water helping the ring slide off.  If you’re heading to the ocean, lake, or pool, you may want to take the ring off first so you don’t lose it.  Or just switch fingers so it’s tight while you’re in the water.

Hot Temperatures

The same thing goes for the opposite extreme: heat.  Your hand will swell in hot weather, and the ring will become tight; perhaps too tight to take off.  This is also normal.  Just use soap and water and the ring will come off.  It should never be so tight that it cuts off circulation though.

Here are some tips on measuring your finger with our plastic ring sizer:

  1. Measure your ring size in the morning, when your fingers are a bit smaller, and at the end of the day when your fingers are a bit bigger.

  2. Measure your finger when your hand is cold and when your hand is warm.

  3. Measuring 3 to 4 times is best so you can get the best average and avoid isolated extremes.

Ring Size Conversion

All the ring sizes shown on Ringi.lt reflect ring sizes used in the US and Canada. If you live in another country, measure your finger and then use the International Ring Size Chart below to convert your size to the corresponding US size. That is the size you should order.

For example, if your ring size is J½ in the UK, that would be a US size 5.  In this case, you would order a size 5 ring from our website.

International Ring Size Chart

 

Inside diameter


Sizes

 artboard-1-100.jpg
IN                MM 

Continental Europe

United States, Canada and Mexico

United Kingdom, Ireland, South Africa and New Zealand

Italy, Spain, Switzerland

0.458

11.63

36.5

0

 

 

0.466

11.84

37.2

14

 

 

0.474

12.04

37.8

12

A

 

0.482

12.24

38.5

34

​A 12

 

0.49

12.45

39.1

1

B

 

0.498

12.65

39.7

​1 14

​B 12

 

0.506

12.85

40.4

​1 12

C

0.4

0.514

13.06

41

​1 34

​C 12

1

0.522

13.26

41.7

2

D

1.7

0.53

13.46

42.3

​2 14

​D 12

2.3

0.538

13.67

42.9

​2 12

E

2.9

0.546

13.87

43.6

​2 34

​E 12

3.6

0.554

14.07

44.2

3

F

4.2

0.562

14.27

44.8

​3 14

​F 12

4.8

0.57

14.48

45.5

​3 12

G

5.5

0.578

14.68

46.1

​3 34

​G 12

6.1

0.586

14.88

46.8

4

H

6.8

0.594

15.09

47.4

​4 14

​H 12

7.4

0.602

15.29

48

​4 12

I

8

0.61

15.49

48.7

​4 34

J

8.7

0.618

15.7

49.3

5

​J 12

9.3

0.626

15.9

50

​5 14

K

10

0.634

16.1

50.6

​5 12

​K 12

10.6

0.642

16.31

51.2

​5 34

L

11.2

0.65

16.51

51.9

6

​L 12

11.9

0.658

16.71

52.5

​6 14

M

12.5

0.666

16.92

53.1

​6 12

​M 12

13.1

0.674

17.12

53.8

​6 34

N

13.8

0.682

17.32

54.4

7

​N 12

14.4

0.69

17.53

55.1

​7 14

O

15.1

0.698

17.73

55.7

​7 12

​O 12

15.7

0.706

17.93

56.3

​7 34

P

16.3

0.714

18.14

57

8

​P 12

17

0.722

18.34

57.6

​8 14

Q

17.6

0.73

18.54

58.3

​8 12

​Q 12

18.3

0.738

18.75

58.9

​8 34

R

18.9

0.746

18.95

59.5

9

​R 12

19.5

0.754

19.15

60.2

​9 14

S

20.2

0.762

19.35

60.8

​9 12

​S 12

20.8

0.77

19.56

61.4

​9 34

T

21.4

0.778

19.76

62.1

10

​T 12

22.1

0.786

19.96

62.7

​10 14

U

22.7

0.794

20.17

63.4

​10 12

​U 12

23.4

0.802

20.37

64

​10 34

V

24

0.81

20.57

64.6

11

​V 12

24.6

0.818

20.78

65.3

​11 14

W

25.3

0.826

20.98

65.9

​11 12

​W 12

25.9

0.834

21.18

66.6

​11 34

X

26.6

0.842

21.39

67.2

12

​X 12

27.2

0.85

21.59

67.8

​12 14

Y

27.8

0.858

21.79

68.5

​12 12

Z

28.5

0.866

22

69.1

​12 34

​Z 12

29.1

0.874

22.2

69.7

13

 

29.7

0.882

22.4

70.4

​13 14

Z1

30.4

0.89

22.61

71

​13 12

 

31

0.898

22.81

71.7

​13 34

Z2

31.7

0.906

23.01

72.3

14

Z3

32.3

0.914

23.22

72.9

​14 14

 

32.9

0.922

23.42

73.6

​14 12

Z4

33.6

0.93

23.62

74.2

​14 34

 

34.2

0.938

23.83

74.8

15

 

34.8

0.946

24.03

75.5

​15 14

 

35.5

0.954

24.23

76.1

​15 12

 

36.1

0.962

24.43

76.8

​15 34

 

36.8

0.97

24.64

77.4

16

 

37.4