Ring Sizing Chart
Need help with sizing?
We recommend that you measure the internal diameter of an existing ring and compare it with the sizing chart below.
| Ring Sizing Chart | |||
| Measure the internal diameter of the ring | |||
| Internal Diameter | Ring Size | ||
| MM | INCH | US/ CA | UK/AUS |
| 14.1 | 0.55 | 3 | F |
| 14.5 | 0.57 | 3.5 | G |
| 14.9 | 0.58 | 4 | H |
| 15.3 | 0.60 | 4.5 | I |
| 15.7 | 0.61 | 5 | J 1/2 |
| 16.1 | 0.63 | 5.5 | K 1/2 |
| 16.5 | 0.65 | 6 | L 1/2 |
| 16.9 | 0.66 | 6.5 | M 1/2 |
| 17.3 | 0.68 | 7 | N 1/2 |
| 17.7 | 0.69 | 7.5 | O 1/2 |
| 18.19 | 0.71 | 8 | P 1/2 |
| 18.5 | 0.73 | 8.5 | Q 1/2 |
| 18.9 | 0.74 | 9 | R 1/2 |
| 19.40 | 0.76 | 9.5 | S 1/2 |
| 19.80 | 0.77 | 10 | T 1/2 |
| 20.2 | 0.79 | 10.5 | U 1/2 |
| 20.6 | 0.81 | 11 | V 1/2 |
| 21 | 0.82 | 11.5 | W 1/2 |
| 21.4 | 0.84 | 12 | X 1/2 |
| 21.8 | 0.85 | 12.5 | Z |