Ring Sizes
We use US & Canada ring sizes on our website. You can use the table below to convert this sizing into your local sizing system.
Inside Diameter | ![]() ![]() | ![]() ![]() | ![]() ![]() | ![]() | |
---|---|---|---|---|---|
MM | Inches | US & Canada | British & Australian | French & Russian | German |
12.37 | 0.487 | 1 | B | - | - |
13.21 | 0.52 | 2 | D | 41.5 | 13.5 |
13.61 | 0.536 | 2.5 | E | 42.75 | 13.75 |
13.05 | 0.553 | 3 | F | 44 | 14 |
14.45 | 0.569 | 3.5 | G 1/4 | - | 14.5 |
14.86 | 0.585 | 4 | H 1/2 | - | 15 |
15.7 | 0.618 | 5 | J 1/2 | - | 15.75 |
16.51 | 0.65 | 6 | M | 52.75 | 16.5 |
17.35 | 0.683 | 7 | O | 55.25 | 17.25 |
18.19 | 0.716 | 8 | Q | 57.75 | 18 |
18.89 | 0.748 | 9 | R 3/4 | - | 19 |
19.84 | 0.781 | 10 | T 1/2 | - | 20 |
20.68 | 0.814 | 11 | V 1/2 | - | 20.75 |
21.49 | 0.846 | 12 | Y | 67.5 | 21.25 |
22.33 | 0.879 | 13 | Z+1 | - | 22 |