Guide · Sizing
Find the perfect fit.
The right size sits snugly at the base of the finger — comfortable to slide on, secure enough that the ring stays close to what matters. Below are three trusted ways to measure at home.
Women's Sizes
| Size | Diameter (mm) | Circumf. (mm) | US | EU | UK |
|---|---|---|---|---|---|
| 10 | 15.7 | 49.3 | 5 | 49 | J |
| 11 | 16.1 | 50.6 | 5½ | 50½ | K |
| 12 | 16.5 | 51.9 | 6 | 52 | L |
| 13 | 16.9 | 53.1 | 6½ | 53 | M |
| 14 | 17.3 | 54.4 | 7 | 54½ | N |
| 15 | 17.7 | 55.7 | 7½ | 56 | O |
Men's Sizes
| Size | Diameter (mm) | Circumf. (mm) | US | EU | UK |
|---|---|---|---|---|---|
| 20 | 19.4 | 60.9 | 9½ | 61 | S |
| 21 | 19.8 | 62.2 | 10 | 62 | T |
| 22 | 20.2 | 63.4 | 10½ | 63½ | U |
| 23 | 20.6 | 64.7 | 11 | 65 | V |
| 24 | 21 | 66 | 11½ | 66 | W |
| 25 | 21.4 | 67.2 | 12 | 67½ | X |
| 26 | 21.8 | 68.5 | 12½ | 69 | Y |
01
The string method
Wrap a thin string, floss, or a strip of paper around the base of the finger you'd like to size.
Mark the point where it overlaps. Lay it flat, measure the length in millimetres — that's your circumference.
Match it against the tables above to find your size.
02
Measure an existing ring
Choose a ring that already fits comfortably on the intended finger.
Measure the inner diameter across the widest point in millimetres.
Match it against the tables above.
03
Download a Printable Ring Sizer
Download the complimentary ring-sizing PDF and print it at home on A4 paper at 100% scale for an accurate result.
A few tips
- · Measure at the end of the day, when your fingers are at their widest.
- · Avoid measuring when your hands are cold or immediately after exercise.
- · When between two sizes, choose the larger size.
- · For wider bands, including men's silver and white-gold rings, choosing half a size larger is recommended.