How to check your ring size?

To find the right ring size you can:
- Measure the circumference of the finger you'll wear it on – using a tailor's tape, a thread or string and a ruler.
- Check the inner diameter of a ring you already own – just use a ruler.
Once you know the dimensions, look at the table on the right and pick the matching size.
| Jeweller Size | Inner Circumference [mm] | Inner Diameter [mm] |
| 5 | 45 | 14.0 |
| 6 | 46 | 14.3 |
| 7 | 47 | 14.6 |
| 8 | 48 | 15.0 |
| 9 | 49 | 15.3 |
| 10 | 50 | 15.6 |
| 11 | 51 | 16.0 |
| 12 | 52 | 16.3 |
| 13 | 53 | 16.6 |
| 14 | 54 | 17.0 |
| 15 | 55 | 17.3 |
| 16 | 56 | 17.6 |
| 17 | 57 | 18.0 |
| 18 | 58 | 18.3 |
| 19 | 59 | 18.6 |
| 20 | 60 | 19.0 |
| 21 | 61 | 19.3 |
| 22 | 62 | 19.6 |
| 23 | 63 | 20.0 |
