Jewellery
Ring (Inner Diameter) Size Chart
This Ring (Inner Diameter) size chart covers 8 sizes (5 – 12) across 1 measurements: inner diameter. Values are in millimetres, and you can switch the table to centimetres.
Size chart
| Ring Size (US) | Inner Diameter (mm) | Circumference (mm) |
|---|---|---|
| 5 | 15.7 | 49.3 |
| 6 | 16.5 | 51.9 |
| 7 | 17.3 | 54.4 |
| 8 | 18.1 | 57.0 |
| 9 | 19.0 | 59.5 |
| 10 | 19.8 | 62.1 |
| 11 | 20.6 | 64.6 |
| 12 | 21.4 | 67.2 |
Fit tip
Measure a ring that already fits and match its inner diameter. Size when your hands are warm, as fingers shrink in the cold.
How to measure

- AInner Diameter
Measure straight across the inside, from one inner wall to the opposite wall.
About these measurements: they're typical values for this kind of product, meant as a starting point. Every brand's fit is different, so adjust them to match your own garments before publishing.


