Wrap a thin strip around the base of your finger, mark, then measure in mm. Divide by 3.14 for diameter.
Measure the inside diameter of a ring that fits.
| US | UK | EU | MM |
|---|---|---|---|
| 5 | J | 49 | 49.3 |
| 6 | L | 52 | 51.9 |
| 7 | N | 54 | 54.4 |
| 8 | P | 57 | 57.0 |
| 9 | R | 59 | 59.5 |
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