Ring Size Chart
All our Hamilton & Young Rings use the U.S. Sizing, ranging between Sizes 5 - 12.
There are not always ½ sizes available, so we recommend you 'Round Up' for the best fit as the way our rings are handmade, they often fall slightly smaller for size.
Please see the comparison chart below to convert your correct size.
| Size (mm) | Diameter (mm) | AUS/GB size | French Size | German Size | Italian Size | U.S Size |
| 48 | 15.3 | I 1/2 | -- | 15.25 | 8 | 4 1/2 |
| 49 | 15.7 | J 1/2 | -- | 15.75 | 9.5 | 5 |
| 51 | 16.1 | L | 51 3/4 | 16 | 10.5 | 5 1/2 |
| 52 | 16.5 | M | 52 3/4 | 16.5 | 11.5 | 6 |
| 53 | 16.9 | N | 54 | 17 | 13 | 6 1/2 |
| 55 | 17.4 | O | 55 1/4 | 17.25 | 14.5 | 7 |
| 56 | 17.8 | P | 56 1/2 | 17.75 | 16 | 7 1/2 |
| 57 | 18.2 | Q | 57 3/4 | 18 | 17 | 8 |
| 58 | 18.5 | Q 1/2 | 58 | 18.5 | 18.5 | 8 1/2 |
| 59 | 18.9 | R 1/2 | 59 1/4 | 19 | 19.5 | 9 |
| 61 | 19.4 | S 1/2 | 60 1/2 | 19.5 | 21 | 9 1/2 |
| 62 | 19.9 | T 1/2 | 61 3/4 | 20 | 22 | 10 |
| 63 | 20.2 | U 1/2 | 62 3/4 | 20.25 | 23.5 | 10 1/2 |
| 65 | 20.7 | V 1/2 | 64 1/4 | 20.75 | 25 | 11 |
| 66 | 21.1 | W 1/2 | 66 | 21 | 26.5 | 11 1/2 |
| 68 | 21.5 | Y | 67 1/2 | 21.25 | 27.5 | 12 |
| 69 | 21.9 | Z | 68 3/4 | 21.75 | 28.5 | 12 1/2 |
| 70 | 22.3 | Z+1 | -- | 22 | 30 | 13 |