Ring Sizing Guide
Find your perfect ring size with our comprehensive UK, US and EU conversion chart.
How to Measure Your Ring Size
Wrap Your Finger
Wrap a strip of paper or string around the base of your intended finger, ensuring it can slide over the knuckle.
Mark the Overlap
With a fine pen, mark the point where the paper meets to form a comfortable circle around your finger.
Measure Millimetres
Lay the paper flat against a ruler and measure the length in millimetres (mm) for the most accurate result.
Find Your Size
Match your millimeter measurement against our chart below to determine your exact UK and international size.
Size Conversion Chart
Compare inside diameter in millimetres to find your matching size.
| UK Size | Diameter (mm) | Approx. US Size | Approx. EU Size |
|---|---|---|---|
| A | 12.04 | 1 ¾ | 40½ |
| B | 12.45 | 2 ¼ | 41½ |
| C | 12.85 | 2 ¾ | 42¾ |
| D | 13.26 | 3 ¼ | 44½ |
| E | 13.67 | 3 ¾ | 45½ |
| F | 14.07 | 4 ¼ | 46½ |
| G | 14.48 | 4 ¾ | 47½ |
| H | 14.88 | 5 ¼ | 48½ |
| I | 15.29 | 5 ¾ | 49½ |
| J | 15.49 | 6 | 50 |
| K | 15.90 | 6 ½ | 51 |
| L | 16.31 | 7 | 52 |
| M | 16.72 | 7 ½ | 53 |
| N | 17.12 | 8 | 54 |
| O | 17.53 | 8 ½ | 55 |
| P | 17.94 | 9 | 56 |
| Q | 18.34 | 9 ½ | 57 |
| R | 18.75 | 10 | 58 |
| S | 19.15 | 10 ½ | 59 |
| T | 19.55 | 11 | 60 |
| U | 19.96 | 11 ½ | 61 |
| V | 20.36 | 12 | 62 |
| W | 20.76 | 12 ½ | 63 |
| X | 21.16 | 13 | 64 |
| Y | 21.56 | 13 ½ | 65 |
| Z | 21.76 | 13 ¾ | 65½ |
Expert Sizing Advice
Measure at the end of the day when fingers are warm and at their natural resting size.
Avoid measuring when your hands are cold, as fingers can be up to half a size smaller.
For wider band rings (6mm+), consider selecting half a size larger for a comfortable fit.
Unsure? We provide a complimentary one-time ring resizing on all ring purchases.