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The Girly Store
 
 

The Girly Store
 
 
 
 

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Ring Charts



Conversion chart for ring sizes

Inside diameter Inside circumference Sizes
(in) (mm) (in) (mm) United States
and Canada		 United Kingdom,
Ireland,
and Australia		 China,
Japan		 Switzerland
0.586 14.88 1.84 46.8 4 H 7
0.594 15.09 1.87 47.4 4¼ H½
7.75
0.602 15.29 1.89 48.0 4½ I 8
0.61 15.49 1.92 48.7 4¾ J
9
0.618 15.70 1.94 49.3 5 J½ 9
0.626 15.90 1.97 50.0 5¼ K
10
0.634 16.10 1.99 50.6 5½ K½ 10
0.642 16.31 2.02 51.2 5¾ L
11.75
0.65 16.51 2.04 51.9 6 L½ 11 12.75
0.658 16.71 2.07 52.5 6¼ M 12
0.666 16.92 2.09 53.1 6½ M½ 13 14
0.674 17.12 2.12 53.8 6¾ N

0.682 17.32 2.14 54.4 7 N½ 14 15.25
0.69 17.53 2.17 55.1 7¼ O

0.698 17.73 2.19 55.7 7½ O½ 15 16.5
0.706 17.93 2.22 56.3 7¾ P

0.714 18.14 2.24 57.0 8 P½ 16 17.75
0.722 18.34 2.27 57.6 8¼ Q

0.73 18.54 2.29 58.3 8½ Q½ 17
0.738 18.75 2.32 58.9 8¾ R
19
0.746 18.95 2.34 59.5 9 R½ 18
0.754 19.15 2.37 60.2 9¼ S
20.25
0.762 19.35 2.39 60.8 9½ S½ 19
0.77 19.56 2.42 61.4 9¾ T
21.5
0.778 19.76 2.44 62.1 10 T½ 20
0.786 19.96 2.47 62.7 10¼ U 21
0.794 20.17 2.49 63.4 10½ U½ 22 22.75
0.802 20.37 2.52 64.0 10¾ V

0.81 20.57 2.54 64.6 11 V½ 23
0.818 20.78 2.57 65.3 11¼ W
25
0.826 20.98 2.59 65.9 11½ W½ 24
0.834 21.18 2.62 66.6 11¾ X

0.842 21.39 2.65 67.2 12 X½ 25 27.5
0.874 22.2 2.75 69.7 13 Y

0.906 23.01 2.85 72.3 14 Z3

0.938 23.83 2.95 74.8 15


0.97 24.64 3.05 77.4 16