Ring size guide and international size chart
Find your ring size in two minutes. Measure the inside of a ring that fits, or the length around your finger, then convert it to US, UK, European, Japanese or Swiss sizes below.
Ring size finder
Enter what you measured, or a size you already know.
Your size in every system will appear here.
How to measure your ring size
Three easy ways. Measure at the end of the day, when your fingers are slightly larger, and never with cold hands.
- Measure a ring that fits
Place a ring that fits the same finger on a ruler. Measure the inside, edge to edge, in millimetres. That is the inside diameter.
- Use a strip of paper
Wrap a thin strip of paper around the base of your finger. Mark where it overlaps, lay it flat and measure the length in millimetres. That is the circumference.
- Visit our showroom
Come to one of our Dubai branches and we will size your finger in a minute.
International ring size chart
Find your inside diameter or size in one column, then read across for every other system.
| Inside diameter (mm) | US & Canada | UK & Australia | Europe (ISO) | Circumference (mm) | Japan | Swiss |
|---|---|---|---|---|---|---|
| 14.1 | 3 | F | 44 | 44.2 | 4 | 4 |
| 14.5 | 3.5 | G | 45 | 45.5 | 5 | 5.5 |
| 14.9 | 4 | H | 47 | 46.8 | 7 | 7 |
| 15.3 | 4.5 | I | 48 | 48.0 | 8 | 8 |
| 15.7 | 5 | J½ | 49 | 49.3 | 9 | 9.5 |
| 16.1 | 5.5 | K½ | 51 | 50.6 | 10 | 10.5 |
| 16.5 | 6 | L½ | 52 | 51.9 | 12 | 12 |
| 16.9 | 6.5 | M½ | 53 | 53.1 | 13 | 13 |
| 17.3 | 7 | N½ | 54 | 54.4 | 14 | 14.5 |
| 17.7 | 7.5 | O½ | 56 | 55.7 | 15 | 15.5 |
| 18.1 | 8 | P½ | 57 | 57.0 | 16 | 17 |
| 18.5 | 8.5 | Q½ | 58 | 58.2 | 17 | 18 |
| 18.9 | 9 | R½ | 60 | 59.5 | 18 | 19.5 |
| 19.4 | 9.5 | S½ | 61 | 60.8 | 19 | 21 |
| 19.8 | 10 | T½ | 62 | 62.1 | 20 | 22 |
| 20.2 | 10.5 | U½ | 63 | 63.3 | 22 | 23.5 |
| 20.6 | 11 | V½ | 65 | 64.6 | 23 | 24.5 |
| 21.0 | 11.5 | W½ | 66 | 65.9 | 24 | 26 |
| 21.4 | 12 | X½ | 67 | 67.2 | 25 | 27 |
| 21.8 | 12.5 | Z | 68 | 68.5 | 26 | 28.5 |
| 22.2 | 13 | Z+1 | 70 | 69.7 | 27 | 29.5 |
European (ISO) sizes are the inside circumference in millimetres. Swiss sizes are the circumference in millimetres minus 40. Sizes are rounded, so a ring may vary slightly between makers.
Tips for the right fit
- Knuckles. The ring must slide over your knuckle. If your knuckle is wider than the base of your finger, choose a size between the two.
- Wide bands. A wide band or signet ring feels tighter, so many people go half a size up.
- Between sizes. Pick the larger one. It is easier to make a ring slightly smaller than larger.
- Hot and cold. Fingers swell in heat and shrink in the cold. Measure at room temperature.
- Buying a gift? Borrow a ring the person wears on the same finger, or ask us for help.
Most common sizes
Most women wear between US 5 and US 7, and most men between US 8 and US 11. Use this only as a starting point and always measure.
Wrong size? We can resize
Many of our ready-made rings can be resized. Resizing adds 2–3 business days before dispatch.
See delivery timesStill not sure of your size?
Send us a photo of your measurement on WhatsApp and we will confirm your size, or tell us your size when you order a custom ring.