Three Ways to Find Your Size
Method 1 — Measure an Existing Ring
Place a ring that fits well on a ruler and measure the internal diameter in millimetres. Match this to the table below to find your EU size. This is the most accurate method.
Method 2 — String or Paper Wrap
Wrap a thin strip of paper or a piece of string around the base of your finger. Mark where the paper or string overlaps. Measure the length in millimetres — this is your circumference. Find your size in the table below. Add 1–2mm for comfort if you have prominent knuckles.
Method 3 — Request a Free Ring Sizer
Email us at info@astridgold.be and we will post you a free ring sizer set. Return it and we will confirm your exact size before crafting your ring.
EU / UK / US Size Conversion Chart
| EU Size | UK Size | US Size | Diameter (mm) | Circumference (mm) |
|---|---|---|---|---|
| 44 | F | 3 | 14.0 | 44.0 |
| 46 | H | 3.5 | 14.7 | 46.1 |
| 47 | I | 4 | 15.0 | 47.1 |
| 48 | J | 4.5 | 15.3 | 48.0 |
| 49 | K | 5 | 15.6 | 49.0 |
| 50 | L | 5.5 | 15.9 | 50.0 |
| 51 | M | 6 | 16.2 | 51.0 |
| 52 | N | 6.5 | 16.6 | 52.0 |
| 53 | O | 7 | 16.9 | 53.0 |
| 54 | P | 7.5 | 17.2 | 54.0 |
| 55 | Q | 8 | 17.5 | 55.0 |
| 56 | R | 8.5 | 17.8 | 56.0 |
| 58 | S | 9 | 18.5 | 58.0 |
| 60 | T | 10 | 19.1 | 60.0 |
| 62 | U | 11 | 19.8 | 62.0 |
| 65 | W | 12 | 20.7 | 65.0 |
| 68 | Y | 13 | 21.6 | 68.0 |
Sizing Tips
- Fingers swell slightly in heat and shrink in cold — measure at the end of the day for the most accurate result.
- Measure the finger you will wear the ring on — your ring finger and index finger on the same hand are often different sizes.
- For wider bands (2.5mm+), consider going up half a size for comfort.
- If you are between sizes, always size up — it is easier for us to size down than up.
- All our rings include one free resizing within 12 months of purchase.
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