How to choose the right ring size?
Looking for the perfect ring? I'll show you how to find it! If you already own a ring (or have one belonging to the person you're buying for), it's easy—just measure it and compare it with our chart. If you don't have a ring, measure the finger you plan to wear it on.
The most accurate way is to get your finger measured with a jeweler's ring sizer. The size indicates the inner circumference of the ring in millimeters. Measuring with a tape measure, paper strip, or string is less precise. Always measure around your knuckle, as the ring needs to slide over it comfortably.
Ring size chart
| ring size ( = inner circumference in mm) |
ring diameter | USA size | UK size |
| 43 | 13.6 mm | 2.5 | E |
| 44 | 13.9 mm | 3 | F |
| 45 | 14.3 mm | 3 | G |
| 46 | 14.6 mm | 3.5 | G |
| 47 | 14.9 mm | 4 | H |
| 48 | 15.3 mm | 4.5 | I |
| 49 | 15.6 mm | 5 | J |
| 50 | 15.9 mm | 5.5 | J |
| 51 | 16.2 mm | 6 | L |
| 52 | 16.6 mm | 6 | M |
| 53 | 16.9 mm | 6.5 | M |
| 54 | 17.2 mm | 7 | N |
| 55 | 17.5 mm | 7 | O |
| 56 | 17.8 mm | 7.5 | P |
| 57 | 18.1 mm | 8 | Q |
| 58 | 18.5 mm | 8.5 | Q |
| 59 | 18.8 mm | 9 | R |
| 60 | 19.1 mm | 9 | S |
| 61 | 19.4 mm | 9.5 | S |
| 62 | 19.7 mm | 10 | T |
| 63 | 20.1 mm | 10.5 | U |
| 64 | 20.4 mm | 11 | V |
| 65 | 20.7 mm | 11 | W |
| 66 | 21.0 mm | 11.5 | W |
| 67 | 21.3 mm | 12 | X |
| 68 | 21.6 mm | 12.5 | Y |
| 69 | 22.0 mm | 13 | Z |
| 70 | 22.3 mm | 13 | Z1 |
| 71 | 22.6 mm | 13.5 | |
| 72 | 22.8 mm | 14 | Z2 |
| 73 | 23.2 mm | 14 | |
| 74 | 23.5 mm | 14.5 | Z4 |
| 75 | 23.8 mm | 15 |