Ring size guide
Your EU ring size is the inner circumference of the ring in millimetres. Wrap a strip of paper around the base of your finger, mark where it overlaps, and measure the length in mm — 54 mm means EU size 54 (about US 6¾).
How to measure
- Cut a thin strip of paper about 10 cm long.
- Wrap it around the base of your finger — snug, but able to slide over the knuckle.
- Mark the point where the paper overlaps.
- Lay it flat and measure from the end to the mark in millimetres. That is your EU size.
Already have a ring that fits? Measure its inside diameter in mm and multiply by 3.14 to get the EU size.
Ring size chart
| EU size | Inner circumference | Inner diameter | US size (approx.) |
|---|---|---|---|
| 48 | 48 mm | 15.3 mm | 4.5 |
| 49 | 49 mm | 15.6 mm | 5 |
| 50 | 50 mm | 15.9 mm | 5.25 |
| 51 | 51 mm | 16.2 mm | 5.75 |
| 52 | 52 mm | 16.6 mm | 6 |
| 53 | 53 mm | 16.9 mm | 6.5 |
| 54 | 54 mm | 17.2 mm | 6.75 |
| 55 | 55 mm | 17.5 mm | 7.25 |
| 56 | 56 mm | 17.8 mm | 7.5 |
| 57 | 57 mm | 18.1 mm | 8 |
| 58 | 58 mm | 18.5 mm | 8.5 |
| 59 | 59 mm | 18.8 mm | 8.75 |
| 60 | 60 mm | 19.1 mm | 9.25 |
| 61 | 61 mm | 19.4 mm | 9.5 |
| 62 | 62 mm | 19.7 mm | 10 |
Frequently asked questions
How do I measure my ring size at home?
Wrap a thin strip of paper or string snugly around the base of the finger, mark where it meets, then lay it flat and measure the length in millimetres. That number is your EU ring size. Measure at the end of the day, when fingers are slightly larger.
What if I'm between two sizes?
Choose the larger size, especially for wider bands or if your knuckles are larger than the base of your finger.
How do EU ring sizes convert to US sizes?
EU size is the inner circumference in mm. US sizes follow a standard where size 0 has an inner diameter of 11.63 mm and each full size adds 0.8128 mm. For example, EU 52 ≈ US 6, EU 57 ≈ US 8 and EU 62 ≈ US 10.
Which ring sizes does Azure Chic offer?
Our Fine Jewellery rings are available in every size from EU 48 to EU 62.
Ready to choose?