Ring Size Guide
Buying an engagement ring or a wedding ring will be one of the most momentous purchases of your life, so it’s important to make sure you find the perfect fit. Discover how to measure ring size at home with our expert guide, featuring ring size conversion charts and helpful tips.
UK Ring Sizes
| Ring Size | Circumference (mm) | Ring Size | Circumference (mm) | Ring Size | Circumference (mm) |
|---|---|---|---|---|---|
| A | 37.8 | J | 48.7 | S | 60.2 |
| B | 39.1 | K | 50.0 | T | 61.4 |
| C | 40.4 | L | 51.2 | U | 62.7 |
| D | 41.7 | M | 52.5 | V | 64.0 |
| E | 42.9 | N | 53.8 | W | 65.3 |
| F | 44.2 | O | 55.1 | X | 66.6 |
| G | 45.5 | P | 56.3 | Y | 67.8 |
| H | 46.8 | Q | 57.6 | Z | 68.5 |
| I | 48.0 | R | 58.9 | ||
Using a tape measure, find out your ring size (in mm) by measuring the circumference around the third finger on your left hand. Then, use the above UK ring size chart to find the corresponding letter.