Size Guide
Ring size guide
All Karmalulu rings are available in US sizes 3–12. If you know your size in another system, use the chart below to convert it.
How to measure
- Using a ring you already own: measure the inside diameter across the widest point in millimetres and match it to the chart.
- Using your finger: wrap a thin strip of paper around the base of your finger, mark where it overlaps, then measure the length in millimetres. This is your finger circumference.
- Measure at the end of the day, when fingers are at their largest. If you are between two sizes, choose the larger one. Signet rings and wider bands fit more snugly.
Ring size conversion chart
| US | UK | EU / ISO (UAE) | Inside diameter (mm) | Inside circumference (mm) |
|---|---|---|---|---|
| 3 | F | 44 | 14.0 | 44.2 |
| 4 | H | 47 | 14.8 | 46.8 |
| 5 | J½ | 49 | 15.7 | 49.3 |
| 6 | L½ | 52 | 16.5 | 51.9 |
| 7 | N½ | 54 | 17.3 | 54.4 |
| 8 | P½ | 57 | 18.1 | 57.0 |
| 9 | R½ | 60 | 18.9 | 59.5 |
| 10 | T½ | 62 | 19.8 | 62.1 |
| 11 | V½ | 65 | 20.6 | 64.6 |
| 12 | Y | 67 | 21.4 | 67.2 |
UAE jewellers usually quote the EU / ISO size, which equals the inside circumference in millimetres. Conversions are standard and may vary by ±0.1 mm.
Need help choosing a size? Email us at hello@karmalulu.com.
Authenticity Guaranteed
Every piece is crafted in 18k gold and includes a certificate of authenticity