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![[Ouros Jewels Officla Logo]](http://au.ourosjewels.com/cdn/shop/files/Ouros_Logo_Cap-02_e8b5c4d5-7168-48f6-aa08-6f82bb5c7397_5001x2084.png?v=1672033260){kind=logo}
Welcome to the Ring Sizer Tool
Find the perfect ring size with our easy-to-use tool. Enter the circumference of your finger below to get started.
![[Ouros Jewels Officla Logo]](http://au.ourosjewels.com/cdn/shop/files/Ouros_Logo_Cap-02_e8b5c4d5-7168-48f6-aa08-6f82bb5c7397_480x200.png?v=1672033260){kind=logo}
| US Size | Diameter (mm) | Circumference (mm) |
|---|---|---|
| 3 | 14.1 | 44.2 |
| 3.5 | 14.5 | 45.5 |
| 4 | 14.9 | 46.8 |
| 4.5 | 15.3 | 48.0 |
| 5 | 15.7 | 49.3 |
| 5.5 | 16.1 | 50.6 |
| 6 | 16.5 | 51.9 |
| 6.5 | 16.9 | 53.1 |
| 7 | 17.3 | 54.4 |
| 7.5 | 17.7 | 55.7 |
| 8 | 18.1 | 57.0 |
| 8.5 | 18.5 | 58.3 |
| 9 | 18.9 | 59.5 |
| 9.5 | 19.3 | 60.8 |
| 10 | 19.7 | 62.1 |
| 10.5 | 20.1 | 63.4 |
| 11 | 20.5 | 64.6 |
| 11.5 | 20.9 | 65.9 |
| 12 | 21.3 | 67.2 |
| 12.5 | 21.7 | 68.5 |
| 13 | 22.1 | 69.7 |
Find Your Perfect Ring Size: Free PDF Guide!
Get expert tips to nail your ring size effortlessly. Download now for free!
Size Chart