International Ring Sizing Chart

Following is a chart of ring sizes for the convenience of our international customers.

International Ring Size Chart
United States and Canada Ring Size Diameter in
Inches		 Diameter
in Millimeters		 Great Britain and Australia France Germany Japan Switzerland
000 0.390 9.906 — — — — —
00 0.422 10.719 — — — — —
0 0.454 11.532 — — — — —
1/2 0.462 11.735 A — — — —
3/4 0.471 11.963 A-1/2 — — — —
1 0.487 12.370 B — — 1 —
1 1/4 0.495 12.573 B-1/2 — — — —
1 1/2 0.503 12.776 C — — — —
1 3/4 0.511 12.979 C-1/2 — — — —
2 0.520 13.208 D 41 1/2 13 1/4 2 1 1/2
2 1/4 0.528 13.411 D-1/2 42 1/8 13 1/2 — —
2 1/2 0.536 13.614 E 42 3/4 13 3/4 3 2 3/4
2 3/8 0.544 13.818 E- 1/2 43 3/8 — — 3 3/8
3 0.553 14.046 F 44 14 4 4
3 1/4 0.561 14.249 F-1/2 44 5/8 14 1/4 — 4 5/8
3 1/2 0.569 14.453 G 45 1/4 14 1/2 5 5 1/4
3 3/4 0.577 14.656 G-1/2 45 7/8 14 3/4 6 5 7/8
4 0.586 14.884 H-1/2 46 1/2 15 7 6 1/2
4 1/4 0.594 15.088 I 47 1/8 15 1/4 — 7 1/8
4 1/2 0.602 15.291 I-1/2 47 3/4 15 1/2 8 7 3/4
4 3/4 0.610 15.494 J 48 3/8 — — 8 3/8
5 0.619 15.723 J-1/2 49 15 3/4 9 9
5 1/4 0.627 15.926 K 49 5/8 16 — 9 5/8
5 1/2 0.635 16.129 K-1/2 50 1/4 16 1/4 10 10 1/4
5 3/4 0.643 16.332 L 50 7/8 — 11 10 7/8
6 0.652 16.561 L-1/2 51 1/2 16 1/2 12 11 1/2
6 1/4 0.660 16.764 M 52 1/8 16 3/4 — 12 1/8
6 1/2 0.668 16.967 M-1/2 52 3/4 17 13 12 3/4
6 3/4 0.676 17.170 N 53 3/8 — — 13 3/8
7 0.685 17.399 O 54 17 1/4 14 14
7 1/4 0.693 17.602 O-1/2 54 5/8 17 1/2 — 14 5/8
7 1/2 0.701 17.805 P 55 1/4 17 3/4 15 15 1/4
7 3/4 0.709 18.009 P-1/2 55 7/8 — — 15 7/8
8 0.717 18.212 Q 56 1/2 18 16 16 1/2
8 1/4 0.726 18.440 Q-1/2 57 1/8 18 1/4 — 17 1/8
8 1/2 0.734 18.644 R 57 3/4 18 1/2 17 17 3/4
8 3/4 0.742 18.847 R-1/2 58 3/8 18 3/4 — 18 3/8
9 0.750 19.050 S 59 19 18 19
9 1/4 0.759 19.279 S-1/2 59 5/8 19 1/4 — 19 5/8
9 1/2 0.767 19.482 — 60 1/4 19 1/2 19 20 1/4
9 3/4 0.775 19.685 T 60 7/8 19 3/4 — 20 7/8
10 0.783 19.888 T-1/2 61 1/2 20 20 21 1/2
10 1/4 0.792 20.117 U 62 1/8 20 1/4 21 22 1/8
10 1/2 0.800 20.320 U-1/2 62 3/4 20 1/2 22 22 3/4
10 3/4 0.808 20.523 V 63 3/8 — — 23 3/8
11 0.816 20.726 V-1/2 64 20 3/4 23 24
11 1/4 0.825 20.955 W 64 5/8 — — 24 5/8
11 1/2 0.833 21.158 W-1/2 65 1/4 21 24 25 1/4
11 3/4 0.841 21.361 X 65 7/8 — — 25 7/8
12 0.849 21.565 Y 66 1/2 21 1/4 25 26 1/2
12 1/4 0.858 21.793 Y-1/2 67 1/8 21 1/2 — 27 1/8
12 1/2 0.866 21.996 Z 67 3/4 21 3/4 26 27 3/4
12 3/4 0.874 22.200 Z-1/2 68 3/8 — — 28 3/8
13 0.882 22.403 — 69 22 27 29