Find your usual US, UK or EU size in the same row. International equivalents are approximate. Measure the inside diameter of a comfortable ring, or wrap a narrow paper strip around your finger and measure the marked length. Check the sizes offered on the product page.
Measurements in text
| US / Canada | UK / Australia | EU | Circumference (mm / in) | Inside diameter (mm / in) |
|---|---|---|---|---|
| 4 | H ½ | 47 | 46.8 / 1.84 | 14.9 / 0.59 |
| 4.5 | I ½ | 48 | 48.1 / 1.89 | 15.3 / 0.60 |
| 5 | J ½ | 49 | 49.3 / 1.94 | 15.7 / 0.62 |
| 5.5 | K ½ | 51 | 50.6 / 1.99 | 16.1 / 0.63 |
| 6 | L ½ | 52 | 51.8 / 2.04 | 16.5 / 0.65 |
| 6.5 | M ½ | 53 | 53.1 / 2.09 | 16.9 / 0.67 |
| 7 | N ½ | 54 | 54.3 / 2.14 | 17.3 / 0.68 |
| 7.5 | O ½ | 56 | 55.6 / 2.19 | 17.7 / 0.70 |
| 8 | P ½ | 57 | 56.9 / 2.24 | 18.1 / 0.71 |
| 8.5 | Q ½ | 58 | 58.1 / 2.29 | 18.5 / 0.73 |
| 9 | R ½ | 60 | 59.7 / 2.35 | 19.0 / 0.75 |
| 9.5 | S ½ | 61 | 60.9 / 2.40 | 19.4 / 0.76 |
| 10 | T ½ | 62 | 62.2 / 2.45 | 19.8 / 0.78 |
| 10.5 | U ½ | 63 | 63.5 / 2.50 | 20.2 / 0.80 |
| 11 | V ½ | 65 | 64.7 / 2.55 | 20.6 / 0.81 |
| 11.5 | W ½ | 66 | 66.0 / 2.60 | 21.0 / 0.83 |
| 12 | X ½ | 67 | 67.2 / 2.65 | 21.4 / 0.84 |