Not sure of your ring size? Here are two simple ways to find it at home, plus a conversion chart for UK and US sizes.
Method 1: measure a ring you already own
- Choose a ring that fits the finger you want to wear the new ring on.
- Measure the inside diameter in millimetres, edge to edge.
- Use the chart below to find your size.
Method 2: measure your finger
- Wrap a thin strip of paper or string around the base of your finger.
- Mark where it overlaps and measure the length in millimetres – this is the circumference.
- Use the chart below.
Ring size chart
| US size | UK size | Diameter (mm) | Circumference (mm) |
|---|---|---|---|
| 6 | L½ | 16.5 | 51.8 |
| 7 | N½ | 17.3 | 54.4 |
| 8 | P½ | 18.1 | 57.0 |
| 9 | R½ | 19.0 | 59.5 |
| 10 | T½ | 19.8 | 62.1 |
Top tips
- Measure at the end of the day when your fingers are slightly larger.
- If you are between sizes, choose the larger one.
- Buying a gift? Choose one of our adjustable open rings – no size needed.