Ring Size Chart
Not sure of your ring size? Measure your finger at home in a few minutes and use the chart to find the right fit.
How to measure
- Wrap a thin strip of paper or a piece of string around the base of your finger, where the ring will sit.
- Mark the point where the ends meet and measure the length in millimetres. That is your finger circumference.
- Match it to the chart below, or type it into the size finder. You can also measure the inner diameter of a ring that already fits you.
Find my size
Size chart
| US size | Inner diameter (mm) | Circumference (mm) |
|---|---|---|
| 4 | 14.9 | 46.8 |
| 4.5 | 15.3 | 48 |
| 5 | 15.7 | 49.3 |
| 5.5 | 16.1 | 50.6 |
| 6 | 16.5 | 51.9 |
| 6.5 | 16.9 | 53.1 |
| 7 | 17.3 | 54.4 |
| 7.5 | 17.7 | 55.7 |
| 8 | 18.1 | 57 |
| 8.5 | 18.5 | 58.2 |
| 9 | 18.9 | 59.5 |
| 9.5 | 19.4 | 60.8 |
| 10 | 19.8 | 62.1 |
| 10.5 | 20.2 | 63.3 |
| 11 | 20.6 | 64.6 |
| 11.5 | 21 | 65.9 |
| 12 | 21.4 | 67.2 |
Sizes are US sizes. Ring size numbers vary between countries and jewellers, so use the millimetre measurements to compare.
Tips for a good fit
- Measure at the end of the day, when fingers are at their largest, and avoid measuring when your hands are cold.
- Wide bands feel tighter than thin ones. If you are between sizes, choose the larger size.
- If the ring must slide over a large knuckle, measure the knuckle too and pick a size that fits it comfortably.
- Measure two or three times to be sure.
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