Ring size guide
Find your ring size
Measure a ring you already own
How to measure in 4 steps
- Take a ring that fits the finger you want to wear it on (left and right hand can differ).
- Lay it flat on a ruler with millimetres, or use a calliper if you have one.
- Measure the inside only, straight through the centre from inner edge to inner edge. Do not include the metal of the band.
- Type the number below (for example 18.1). Your size appears straight away.
No ring at hand?
Cut a strip of paper about 1 cm wide. Wrap it snugly around the base of your finger, mark where it overlaps, lay it flat and measure up to the mark in millimetres. Enter that number as finger circumference. This is a little less precise, so if in doubt choose the larger size.
| US | EU | UK (approx.) | Diameter | Circumference |
|---|---|---|---|---|
| US 5 | EU 49 | J½ | 15.7 mm | 49.3 mm |
| US 6 | EU 52 | L½ | 16.5 mm | 51.9 mm |
| US 7 | EU 54.5 | N½ | 17.3 mm | 54.4 mm |
| US 8 | EU 57 | P½ | 18.1 mm | 57.0 mm |
| US 9 | EU 59.5 | R½ | 18.9 mm | 59.5 mm |
| US 10 | EU 62 | T½ | 19.8 mm | 62.1 mm |
| US 11 | EU 64.5 | V½ | 20.6 mm | 64.6 mm |
| US 12 | EU 67 | Y | 21.4 mm | 67.2 mm |
| US 13 | EU 69.5 | Z+1 | 22.2 mm | 69.7 mm |
| US 14 | EU 72 | Z+2 | 23.0 mm | 72.2 mm |
| US 15 | EU 75 | Z+3 | 23.8 mm | 74.8 mm |
| US 16 | EU 77 | Z+4 | 24.6 mm | 77.3 mm |
- Between two sizes? Choose the larger one. Our rings have a solid band and sit best with a little room to pass the knuckle.
- Measure at the end of the day, when fingers are slightly larger, and avoid measuring when cold.
- UK letter sizes are approximate, as charts differ slightly; the millimetre measurements are exact.
- Avoid string or thread: they stretch and often give a size too small. Measuring a ring you own is the most accurate.