INTERNATIONAL RING SIZES REFERENCE GUIDE
ITALY |
UNITED STATES MEXICO MALASIA SINGAPORE |
HONG KONG |
ARGENTINA |
BRAZIL |
FRANCE GERMANY MIDDLE EAST (METRIC) |
KOREA |
SWITZERLAND |
TAIWAN |
UNITED KINGDOM AUSTRALIA |
DIAMETER INCH |
DIAMETER MILLIMETRE |
CIRCUMFERENCE MILLIMETRE |
2 | 3.5 | 5 | 4 | D | ||||||||
3 | 2.5 | 4.25 | 6.5 | 2.25 | E | |||||||
4 | 3 | 6 | 3.5 | 5.5 | F | 0.553 | 14.05 | 44.00 | ||||
5 | 3.25 | 6.25 | 4.25 | 6 | F ½ | |||||||
6 | 3.5 | 7 | 9 | 5 | 6.5 | G ½ | 0.569 | 14.54 | 45.20 | |||
7 | 4 | 8.5 | 8 | 10 | 6.25 | 7 | 7.5 | H ½ | 0.585 | 14.86 | 45.60 | |
8 | 4.5 | 9.5 | 9 | 11 | 48 | 7.5 | 8 | 8.25 | I ½ | 0.601 | 15.27 | 47.80 |
9 | 5 | 11 | 10 | 12.5 | 49.5 | 8.5 | 9.5 | 9 | J | 0.617 | 15.68 | 49.05 |
10 | 5.5 | 12 | 11 | 14 | 50.5 | 10 | 10.75 | 9.25 | K ½ | 0.634 | 16.1 | 50.00 |
11 | 6 | 13 | 12 | 15 | 52 | 11 | 12 | 10.5 | L ½ | 0.65 | 16.51 | 51.50 |
12 | 6.25 | 14 | 11.5 | 11 | M | |||||||
13 | 6.5 | 14.5 | 13 | 16 | 53 | 12 | 13.5 | 11.75 | M ½ | 0.666 | 16.92 | 52.80 |
14 | 7 | 15 | 14 | 17.5 | 54/55 | 13.25 | 14.5 | 12.5 | N ½ | 0.683 | 17.35 | 54.00 |
15 | 7.25 | 15.75 | 13.75 | 13 | O ½ | |||||||
16 | 7.5 | 16.5 | 15 | 18.5 | 56 | 14.5 | 16 | P | 0.669 | 17.75 | 55.30 | |
17 | 8 | 18 | 17 | 20 | 57.5 | 16 | 17 | 14 | Q | 0.716 | 18.09 | 56.60 |
18 | 8.5 | 19 | 18 | 21 | 58.5 | 17.5 | 14.75 | R | 0.732 | 18.53 | 57.80 | |
19 | 9 | 20 | 20 | 22.5 | 60 | 18.25 | 15.5 | S | 0.748 | 18.89 | 59.10 | |
20 | 9.5 | 21 | 21 | 23.5 | 61 | 20 | 16.25 | T | 0.764 | 19.41 | 60.30 | |
21 | 10 | 22 | 22 | 25 | 62.5 | 20.5 | 17 | U | 0.781 | 19.84 | 61.60 | |
22 | 10.25 | 22.75 | 21.25 | 17.5 | U ½ | |||||||
23 | 10.5 | 23.5 | 23 | 26 | 63.5 | 22 | 18 | V | 0.797 | 20.2 | 62.80 | |
24 | 11 | 24.75 | 24 | 27 | 65 | 23 | 19 | W | 0.814 | 20.68 | 64.10 | |
25 | 11.25 | 25.25 | 25.5 | W ½ | ||||||||
11.5 | 0.843 | 21.08 | 65.30 | |||||||||
12 | 0.846 | 0.846 | 66.60 | |||||||||
12.5 | 0.862 | 0.862 | 67.90 | |||||||||
13 | 0.879 | 0.879 | 69.10 |