Ring & Jewelry Size Guide
Use this reference table to find your standard US and International ring size measurements.
| US Size | Diameter (mm) | Circumference (mm) | UK / AU |
|---|---|---|---|
| 5 | 15.7 mm | 49.3 mm | J 1/2 |
| 6 | 16.5 mm | 51.9 mm | L 1/2 |
| 7 | 17.3 mm | 54.4 mm | N 1/2 |
| 8 | 18.1 mm | 57.0 mm | P 1/2 |
| 9 | 18.9 mm | 59.5 mm | R 1/2 |
| 10 | 19.8 mm | 62.1 mm | T 1/2 |
| 11 | 20.6 mm | 64.6 mm | V 1/2 |
| 12 | 21.4 mm | 67.2 mm | X 1/2 |