Ring Size Guide – Find Your Perfect Fit
Ring Size Guide
Find your perfect Melloa fit — use the chart below to convert between UK, US, and European sizes, or measure your finger easily at home.
How to Measure Your Ring Size at Home
- Take a strip of paper or string and wrap it around the base of your finger.
- Mark the point where it overlaps, then measure the length in millimetres.
- Use the chart below to find your matching UK or US size.
💡 Tip: Measure your finger at the end of the day when it’s warm — fingers are slightly smaller in the morning or when cold.
Ring Size Conversion Chart
| Inside Diameter (mm) | UK Size | US Size | EU Size |
|---|---|---|---|
| 15.7 | J½ | 5 | 49 |
| 16.5 | L½ | 6 | 52 |
| 17.3 | N | 7 | 54.5 |
| 18.1 | P | 8 | 57 |
| 18.9 | R | 9 | 59.5 |
| 19.8 | T | 10 | 62 |
| 20.6 | V | 11 | 64.5 |
| 21.4 | X | 12 | 67 |
Find Your Size Instantly
Enter your measurement below to get your ring size in UK, US, and EU standards.
UK Size:
US Size:
EU Size:
💡 Tip: You can measure an existing ring’s inside diameter using a ruler or calliper.
Melloa’s Sizing Notes
- Most spinner rings are slightly wider than regular bands — if you’re between two sizes, we recommend sizing up.
- All our sizes are currently displayed in US sizes, but you can use this guide to match your UK or EU size.
- If you’re buying as a gift, size 7 (N UK) is our most common choice and fits most hands.
