Ringsize
Table of International Ring Sizes
Table of international ring sizes
| Austria | France | diameter | Great Britain | US |
| 40 | 0 | 12,7 | C | 1.5 |
| 41 | 1 | 13,1 | D | 2 |
| 42 | 2 | 13,4 | D½ | 2.5 |
| 43 | 3 | 13,7 | E½ | 2.75 |
| 44 | 4 | 14 | F½ | 3 |
| 45 | 5 | 14,3 | G | 3.5 |
| 46 | 6 | 14,7 | H | 3.75 |
| 47 | 7 | 15 | I | 4.25 |
| 48 | 8 | 15,3 | I½ | 4.5 |
| 49 | 9 | 15,6 | J½ | 5 |
| 50 | 10 | 16 | K | 5.25 |
| 51 | 11 | 16,2 | L | 5.75 |
| 52 | 12 | 16,6 | M | 6 |
| 53 | 13 | 16,9 | M½ | 6.5 |
| 54 | 14 | 17,2 | N½ | 6.75 |
| 55 | 15 | 17,5 | O½ | 7.25 |
| 56 | 16 | 17,8 | P | 7.75 |
| 57 | 17 | 18,2 | Q | 8 |
| 58 | 18 | 18,5 | Q½ | 8.5 |
| 59 | 19 | 18,8 | R½ | 8.75 |
| 60 | 20 | 19,1 | S½ | 9.25 |
| 61 | 21 | 19,4 | T | 9.5 |
| 62 | 22 | 19,8 | U | 10 |
| 63 | 23 | 20,1 | U½ | 10.25 |
| 64 | 24 | 20,4 | V½ | 10.75 |
| 65 | 25 | 20,7 | W½ | 11 |
| 66 | 26 | 21 | X | 11.5 |
| 67 | 27 | 21,3 | Y | 11.75 |
| 68 | 28 | 21,7 | Z | 12.25 |
| 69 | 29 | 22 | Z½ | 12.5 |
| 70 | 30 | 22,3 | Z+1½ | 13 |