INTERNATIONAL RING SIZE TABLE
There are lots of things to take into account when checking your ring size.
From the ring style to the temperature and time of day when you measure your finger, your size can vary.
Our chart can give you an estimate.
| Inside Diameter (mm) |
Circumference (mm) |
US / Canada | Continental Europe | UK / AUS / NZ | China / Japan / Korea |
| 14.07 | 44.20 | 3 | 4.25 | F | 4 |
| 14.48 | 45.50 | 3.5 | 5.50 | G | 5 |
| 14.88 | 46.80 | 4 | 6.75 | H | 7 |
| 15.29 | 48.00 | 4.5 | 8.00 | I | 8 |
| 15.70 | 49.30 | 5 | 9.25 | J 1/2 | 9 |
| 16.10 | 50.60 | 5.5 | 10.50 | K 1/2 | 10 |
| 16.51 | 51.90 | 6 | 11.75 | L 1/2 | 12 |
| 16.92 | 53.10 | 6.5 | 13.25 | M 1/2 | 13 |
| 17.32 | 54.40 | 7 | 14.50 | N 1/2 | 14 |
| 17.73 | 55.70 | 7.5 | 15.75 | O 1/2 | 15 |
| 18.14 | 57.00 | 8 | 17.00 | P 1/2 | 16 |
| 18.54 | 58.30 | 8.5 | 18.25 | Q 1/2 | 17 |
| 18.95 | 59.50 | 9 | 19.50 | R 1/2 | 18 |
| 19.35 | 60.80 | 9.5 | 20.75 | S 1/2 | 19 |
| 19.76 | 62.10 | 10 | 22.00 | T 1/2 | 20 |
| 20.17 | 63.40 | 10.5 | 23.25 | U 1/2 | 22 |
| 20.57 | 64.60 | 11 | 24.75 | V 1/2 | 23 |
| 20.98 | 65.90 | 11.5 | 26.00 | W 1/2 | 24 |
| 21.39 | 67.20 | 12 | 27.25 | X 1/2 | 25 |
| 21.79 | 68.50 | 12.5 | 28.50 | Y | 26 |
| 22.20 | 69.70 | 13 | 29.75 | Z 1/2 | 27 |