Ring Size Guide
To find the correct finger size, it is best to measure the finger's diameter.
- Wrap a piece of string around your finger and mark where the two ends meet with a pen.
- Measure the length of this string in millimetres.
- Compare the length to the table to find your size.
If you already have a ring for your left ring finger, simply print this table to scale and place the ring on top to find the matching internal diameter.
If in doubt between two sizes, always choose the larger one!
| Inside Diameter (mm) | EU Size | UK Size | US Size |
|---|---|---|---|
| 14.0 | 44 | F | 3 |
| 14.4 | 45 | G | 3.25 |
| 14.6 | 46 | G 1/2 | 3.75 |
| 14.9 | 47 | H 1/2 | 4 |
| 15.3 | 48 | I 1/2 | 4.5 |
| 15.7 | 49 | J 1/2 | 4.75 |
| 15.9 | 50 | K | 5.25 |
| 16.1 | 51 | L | 5.5 |
| 16.5 | 52 | L 1/2 | 6 |
| 16.9 | 53 | M 1/2 | 6.25 |
| 17.2 | 54 | N 1/2 | 6.75 |
| 17.5 | 55 | O | 7 |
| 17.8 | 56 | P | 7.5 |
| 18.1 | 57 | P 1/2 | 8 |
| 18.4 | 58 | Q 1/2 | 8.25 |
| 18.8 | 59 | R | 8.75 |
| 19.1 | 60 | R 1/2 | 9 |
| 19.4 | 61 | S 1/2 | 9.5 |
| 19.7 | 62 | T 1/2 | 10 |
| 20.0 | 63 | U | 10.25 |
| 20.3 | 64 | V | 10.75 |
| 20.6 | 65 | V 1/2 | 11 |
| 21.0 | 66 | W 1/2 | 11.5 |
| 21.3 | 67 | X | 11.75 |
| 21.6 | 68 | Y | 12.25 |
| 21.9 | 69 | Z | 12.5 |
| 22.3 | 70 | Z 1/2 | 13 |