Click here to download and print a chart to discover your ring size.
| Diameter in mm | NZ/British Size | US Ring Size |
| 11.5 | A | 0.5 |
| 12.3 | B | 1 |
| 12.7 | C | 1.5 |
| 13.1 | D | 2 |
| 13.5 | E | 2.5 |
| 13.9 | F | 3 |
| 14.3 | G | 3.25 |
| 14.7 | H | 3.75 |
| 15.1 | I | 4.25 |
| 15.5 | J | 4.75 |
| 15.9 | K | 5.25 |
| 16.3 | L | 5.75 |
| 16.7 | M | 6.25 |
| 17.1 | N | 6.75 |
| 17.5 | O | 7 |
| 17.9 | P | 7.5 |
| 18.3 | Q | 8 |
| 18.7 | R | 8.5 |
| 19.1 | S | 9 |
| 19.5 | T | 9.5 |
| 19.9 | U | 10 |
| 20.3 | V | 10.5 |
| 20.7 | W | 11 |
| 21.1 | X | 11.5 |
| 21.5 | Y | 12 |
| 21.9 | Z | 12.5 |