Ring Size Guide
International Ring Size Standards
To help you find the perfect fit, we’ve provided a comprehensive ring size conversion chart based on internal circumference (in millimeters). This guide translates sizes across major international standards.
| Finger Size (mm) | Europe | USA | UK | Japan |
|---|---|---|---|---|
| 44 | 44 | 3 | F ½ | 4 |
| 45 | 45 | 3 ¼ | G | 5 |
| 46 | 46 | 3 ¾ | H | 6 |
| 47 | 47 | 4 | H ½ | 7 |
| 48 | 48 | 4 ½ | I ½ | 8 |
| 49 | 49 | 4 ¾ | J ½ | 9 |
| 50 | 50 | 5 ¼ | K | 10 |
| 51 | 51 | 5 ¾ | L | 11 |
| 52 | 52 | 6 | L ½ | 12 |
| 53 | 53 | 6 ¼ | M ½ | 13 |
| 54 | 54 | 6 ¾ | N ½ | 14 |
| 55 | 55 | 7 ¼ | O | 15 |
| 56 | 56 | 7 ½ | P | 16 |
| 57 | 57 | 8 | P ½ | 17 |
| 58 | 58 | 8 ¼ | Q ½ | 18 |
| 59 | 59 | 8 ¾ | R | 19 |
| 60 | 60 | 9 | S | 20 |
| 61 | 61 | 9 ½ | S ½ | 21 |
| 62 | 62 | 10 | T ½ | 22 |
| 63 | 63 | 10 ¼ | U ½ | 23 |
| 64 | 64 | 10 ¾ | V | 24 |
| 65 | 65 | 11 | W | 25 |
| 66 | 66 | 11 ½ | W ½ | 26 |
| 67 | 67 | 11 ¾ | X ½ | 27 |
| 68 | 68 | 12 ¼ | Z | 28 |
| 69 | 69 | 12 ½ | Z ½ | 29 |
| 70 | 70 | 13 | – | 30 |
| 71 | 71 | 13 ¼ | – | 31 |
Please note: This size chart is intended as a reference guide. For the most accurate fit, we recommend having your ring size professionally measured.