Online Encyclopedia of Silver Marks, Hallmarks & Makers' Marks
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INTERNATIONAL RING SIZE CONVERTER

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U. S. and Canada Diameter (Inches) Britain Japan France Germany Switzerland
1 0.487 B 1
1 1/4 0.495 B 1/2
1 1/2 0.503 C
1 3/4 0.511 C 1/2
2 0.520 D 2 41 1/2 13 1/4 1 1/2
2 1/4 0.528 D 1/2 42 1/8 13 1/2 2 1/8
2 1/2 0.536 E 3 42 3/4 13 3/4 2 3/4
2 3/4 0.544 E 1/2 43 3/8 3 3/8
3 0.553 F 4 44 14 4
3 1/4 0.561 F 1/2 44 5/8 14 1/4 4 5/8
3 1/2 0.569 G 5 45 1/4 14 1/2 5 1/4
3 3/4 0.577 G 1/2 6 45 7/8 14 3/4 5 7/8
4 0.586 H 7 46 1/2 15 6 1/2
4 1/4 0.594 H 1/2 47 1/8 15 1/4 7 1/8
4 1/2 0.602 I 8 47 3/4 15 1/2 7 3/4
4 3/4 0.610 I 1/2 48 3/8 8 3/8
5 0.619 J 9 49 15 3/4 9
5 1/4 0.627 J 1/2 49 5/8 16 9 5/8
5 1/20.635 K 10 50 1/4 16 1/4 10 1/4
5 3/4 0.643K 1/2 11 50 7/8 10 7/8
6 0.652 L 12 51 1/2 16 1/2 11 1/2
6 1/4 0.660 L 1/2 52 1/816 3/4 12 1/8
6 1/2 0.668 M 13 52 3/417 12 3/4
6 3/4 0.676 M 1/2 53 3/8 13 3/8
7 0.685 N 14 54 17 1/4 14
7 1/4 0.693 N 1/2 54 5/8 17 1/2 14 5/8
7 1/2 0.701 O 15 55 1/4 17 3/4 15 1/4
7 3/4 0.709 O 1/2 55 7/8 15 7/8
8 0.717 P 16 56 1/2 18 16 1/2
8 1/40.726 P 1/2 57 1/8 18 1/4 17 1/8
8 1/20.734 Q 17 57 3/4 18 1/2 17 3/4
8 3/4 0.742Q 1/2 58 3/8 18 3/4 18 3/8
9 0.750R 18 59 19 19
9 1/4 0.759 R 1/2 59 5/8 19 1/4 19 5/8
9 1/2 0.767 S 19 60 1/4 19 1/2 20 1/4
9 3/4 0.775 S 1/2 60 7/819 3/4 20 7/8
10 0.783 T 20 61 1/220 21 1/2
10 1/4 0.792 T 1/2 21 62 1/8 20 1/4 22 1/8
10 1/2 0.800 U 22 62 3/4 20 1/2 22 3/4
10 3/4 0.808 U 1/2 63 3/8 23 3/8
11 0.816 V 23 64 20 3/4 24
11 1/4 0.825 V 1/2 64 5/8 24 5/8
11 1/2 0.833 W 24 65 1/4 21 25 1/4
11 3/40.841 W 1/2 65 7/8 25 7/8
120.849 X 25 66 1/2 21 1/4 26 1/2
12 1/4 0.858X 1/2 67 1/8 21 1/2 27 1/8
12 1/2 0.866Y 26 67 3/4 21 3/4 27 3/4
12 3/4 0.874 Y 1/2 68 3/8 28 3/8
13 0.882 Z 27 69 22 29
U. S. and Canada Diameter (Inches) Britain Japan France Germany Switzerland
Related Pages at 925-1000.com:
American Silver Marks
British Hallmarks
Austrian Hallmarks
Dutch Hallmarks
Finnish Hallmarks & Makers
French Hallmarks & Makers
German Hallmarks
Italian Marks from 1872
Swedish Hallmarks
Danish Makers
Norwegian Makers
David-Andersen Marks
Georg Jensen Marks
Yogya Silver
Mexican Marks & Makers
Chinese Export Marks
Silverplate Trademarks

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