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Ring Sizes

DETERMINE THE CORRECT RING SIZE

The European ring size corresponds to the diameter of the inside of the ring. For instance size 17 corresponds with a diameter of 17 mm. In order to determine the appropriate ring size: take a good ring and measure the inner diameter. This correspondence with your European ring size.

Please note that the fingers at warm temperatures at the end of the day are at their greatest. If you do your measurement at the end of the day, the ring will usually fit. If in doubt between two sizes, you should choose the largest one.

Using the table below you can concert your own ring size to the American or British ring size or vise versa.

 

International Ring Size  Table

Size

Diameter

Size

Diameter

USA

UK

Netherlands

(Inches)

(Inches)

(mm)

(mm)

 

 

 

1.88

0.60

47.63

15.27

4 1/2

I-½

    15

1.94

0.61

49.21

15.70

5

J-½

    15

2.00

0.63

50.80

16.10

5 3/4

L

    16

2.06

0.64

52.39

16.51

6

L-½  

    16

2.13

0.66

53.98

16.92

6 1/2

M-½

    17

2.19

0.68

55.56

17.35

7

O

    17

2.25

0.69

57.15

17.75

7 1/2

P

    18

2.31

0.71

58.74

18.19

8

Q

    18

2.38

0.72

60.33

18.53

8 1/2

R

    19

2.44

0.74

61.91

18.89

9

S

    19

2.50

0.76

63.50

19.41

9 1/2

---

    20

2.56

0.77

65.09

19.84

10

T-½

    20

2.63

0.79

66.68

20.20

10 1/2

U-½

    21

2.69

0.81

68.26

20.68

11

V-½

    21

2.75

0.82

69.85

21.08

11 1/2

W-½

    22

2.81

0.84

71.44

21.49

12

Y

    22

2.88

0.85

73.03

21.89

12 1/2

Z

    23

2.94

0.87

74.61

22.33

13

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    23

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