Ring Size Guide
Finding your ring size is easier if you start with a ring you already wear. Otherwise, you can measure your finger and compare the result with the chart.
If you already have a ring that fits
- Use a ruler to measure the ring’s inside diameter, from one inner edge to the other across the center.
- Compare your measurement with the “Diameter” column.
If you’re measuring your finger
- Wrap a thin strip of paper around the base of your finger, without pulling it tight.
- Mark where the ends meet, then measure the strip in millimeters.
- Compare your measurement with the “Circumference” column.
Ring Size Chart
| Italian Size | Circumference | Diameter |
|---|---|---|
| 9 | 49 mm | 15.6 mm |
| 9.5 | 49.5 mm | 15.8 mm |
| 10 | 50 mm | 15.9 mm |
| 10.5 | 50.5 mm | 16.1 mm |
| 11 | 51 mm | 16.2 mm |
| 11.5 | 51.5 mm | 16.4 mm |
| 12 | 52 mm | 16.6 mm |
| 12.5 | 52.5 mm | 16.7 mm |
| 13 | 53 mm | 16.9 mm |
| 13.5 | 53.5 mm | 17.0 mm |
| 14 | 54 mm | 17.2 mm |
| 14.5 | 54.5 mm | 17.3 mm |
| 15 | 55 mm | 17.5 mm |
| 15.5 | 55.5 mm | 17.7 mm |
| 16 | 56 mm | 17.8 mm |
| 16.5 | 56.5 mm | 18.0 mm |
| 17 | 57 mm | 18.1 mm |
| 17.5 | 57.5 mm | 18.3 mm |
| 18 | 58 mm | 18.5 mm |
| 18.5 | 58.5 mm | 18.6 mm |
| 19 | 59 mm | 18.8 mm |
| 19.5 | 59.5 mm | 18.9 mm |
| 20 | 60 mm | 19.1 mm |
| 20.5 | 60.5 mm | 19.3 mm |
| 21 | 61 mm | 19.4 mm |
| 21.5 | 61.5 mm | 19.6 mm |
| 22 | 62 mm | 19.7 mm |
| 22.5 | 62.5 mm | 19.9 mm |
| 23 | 63 mm | 20.1 mm |
| 23.5 | 63.5 mm | 20.2 mm |
| 24 | 64 mm | 20.4 mm |
| 24.5 | 64.5 mm | 20.5 mm |
| 25 | 65 mm | 20.7 mm |
| 25.5 | 65.5 mm | 20.8 mm |
| 26 | 66 mm | 21.0 mm |
| 26.5 | 66.5 mm | 21.2 mm |
| 27 | 67 mm | 21.3 mm |
| EU Size | Circumference | Diameter |
|---|---|---|
| 49 | 49 mm | 15.6 mm |
| 49.5 | 49.5 mm | 15.8 mm |
| 50 | 50 mm | 15.9 mm |
| 50.5 | 50.5 mm | 16.1 mm |
| 51 | 51 mm | 16.2 mm |
| 51.5 | 51.5 mm | 16.4 mm |
| 52 | 52 mm | 16.6 mm |
| 52.5 | 52.5 mm | 16.7 mm |
| 53 | 53 mm | 16.9 mm |
| 53.5 | 53.5 mm | 17.0 mm |
| 54 | 54 mm | 17.2 mm |
| 54.5 | 54.5 mm | 17.3 mm |
| 55 | 55 mm | 17.5 mm |
| 55.5 | 55.5 mm | 17.7 mm |
| 56 | 56 mm | 17.8 mm |
| 56.5 | 56.5 mm | 18.0 mm |
| 57 | 57 mm | 18.1 mm |
| 57.5 | 57.5 mm | 18.3 mm |
| 58 | 58 mm | 18.5 mm |
| 58.5 | 58.5 mm | 18.6 mm |
| 59 | 59 mm | 18.8 mm |
| 59.5 | 59.5 mm | 18.9 mm |
| 60 | 60 mm | 19.1 mm |
| 60.5 | 60.5 mm | 19.3 mm |
| 61 | 61 mm | 19.4 mm |
| 61.5 | 61.5 mm | 19.6 mm |
| 62 | 62 mm | 19.7 mm |
| 62.5 | 62.5 mm | 19.9 mm |
| 63 | 63 mm | 20.1 mm |
| 63.5 | 63.5 mm | 20.2 mm |
| 64 | 64 mm | 20.4 mm |
| 64.5 | 64.5 mm | 20.5 mm |
| 65 | 65 mm | 20.7 mm |
| 65.5 | 65.5 mm | 20.8 mm |
| 66 | 66 mm | 21.0 mm |
| 66.5 | 66.5 mm | 21.2 mm |
| 67 | 67 mm | 21.3 mm |
Italian ring size equals the inner circumference in millimeters minus 40. Fit may vary with ring width: wider bands often feel tighter.
