International Ring Size Conversion Chart Table
side Diameter MM | Inside Diameter Inches | USA Canada Mexico Ring Size | UK Ireland Australia New Zealand South Africa Ring Size | Germany France Ring Size | Spain Italy Ring Size | Japan China India South America Ring Size |
15 mm | 0.59 | 4 | H | 46.8 | 6,5 | 7 |
15.3 mm | 0.60 | 4.5 | I | 48 | 8 | 8 |
15.6 mm | 0.62 | 5 | J | 49.3 | 9,5 | 9 |
16.2 mm | 0.63 | 5.5 | K | 50.6 | 10,5 | 10 |
16.6 mm | 0.65 | 6 | L | 51.9 | 12 | 11 |
16.9 mm | 0.67 | 6.5 | M | 53.1 | 13,5 | 13 |
17.2 mm | 0.68 | 7 | N | 54.4 | 14,5 | 14 |
17.8 mm | 0.70 | 7.5 | O | 55.7 | 16 | 15 |
18.1 mm | 0.71 | 8 | P | 57 | 17 | 16 |
18.5 mm | 0.73 | 8.5 | Q | 58.3 | 18,5 | 17 |
19.1 mm | 0.75 | 9 | R | 59.5 | 20 | 18 |
19.4 mm | 0.76 | 9.5 | S | 60.8 | 21 | 19 |
19.7 mm | 0.78 | 10 | T | 62.1 | 22,5 | 20 |
20.4 mm | 0.79 | 10.5 | U | 63.4 | 23,5 | 22 |
20.7 mm | 0.81 | 11 | V | 64.6 | 25 | 23 |
21.0 mm | 0.83 | 11.5 | W | 65.9 | 26 | 24 |
21.6 mm | 0.84 | 12 | X | 67.2 | 27,5 | 25 |
22.0 mm | 0.86 | 12.5 | Y | 68.5 | 29 | 26 |
22.3 mm | 0.87 | 13 | Z | 69.7 | 30 | 27 |
22.9 mm | 0.89 | 13.5 | Z+2 | 71 | 32 | - |
23.2 mm | 0.91 | 14 | Z+3 | 72.3 | 33 | - |
23.6 mm | 0.92 | 14.5 | Z+4 | 73.6 | 34,5 | - |
24.0 mm | 0.94 | 15 | Z+5 | 74.8 | 35 | - |