Rings Size Chart
How to find your size
- Wrap a strip of paper or a piece of string around the base of the finger you'll wear the ring on.
- Mark where the ends meet and measure the length in millimetres.
- That number is your size. A 57 mm finger takes the 57 mm ring.
Measure at the end of the day, when fingers are at their largest, and make sure the strip passes over your knuckle. This is a wide band — if you're between two sizes, take the larger one.
Size conversion
| Circumference / EU | PL | US | UK | Inside diameter |
|---|---|---|---|---|
| 47 mm | 7 | 4 | H | 15.0 mm |
| 48 mm | 8 | 4.5 | I | 15.3 mm |
| 49 mm | 9 | 4.75 | J | 15.6 mm |
| 50 mm | 10 | 5.25 | K | 16.0 mm |
| 51 mm | 11 | 5.5 | L | 16.3 mm |
| 52 mm | 12 | 6 | L½ | 16.6 mm |
| 53 mm | 13 | 6.25 | M | 17.0 mm |
| 54 mm | 14 | 6.75 | N | 17.2 mm |
| 55 mm | 15 | 7.25 | O | 17.6 mm |
| 56 mm | 16 | 7.5 | O½ | 17.8 mm |
| 57 mm | 17 | 8 | P | 18.1 mm |
| 58 mm | 18 | 8.25 | Q | 18.5 mm |
| 60 mm | 20 | 9 | R½ | 19.0 mm |
| 61 mm | 21 | 9.5 | S | 19.4 mm |
| 62 mm | 22 | 9.75 | T | 19.7 mm |
| 63 mm | 23 | 10.25 | U | 20.0 mm |
| 64 mm | 24 | 10.75 | V | 20.4 mm |
| 65 mm | 25 | 11 | V½ | 20.7 mm |
| 66 mm | 26 | 11.5 | W | 21.0 mm |
| 67 mm | 27 | 11.75 | X | 21.3 mm |
| 68 mm | 28 | 12.25 | Y | 21.6 mm |
| 69 mm | 29 | 12.75 | Z | 22.0 mm |
| 70 mm | 30 | 13 | Z½ | 22.3 mm |
| 71 mm | 31 | 13.25 | Z1 | 22.6 mm |
| 73 mm | 33 | 14 | Z3 | 23.2 mm |