Choosing the right ring size is easier when you have an accurate measurement. Use this guide to measure a ring you already own or measure your finger at home. For the best results, measure in millimetres.
Ring Size Chart
| US size | Inside diameter | Finger circumference |
|---|---|---|
| 5 | 15.7 mm | 49.3 mm |
| 6 | 16.5 mm | 51.9 mm |
| 7 | 17.3 mm | 54.4 mm |
| 8 | 18.1 mm | 57.0 mm |
| 9 | 18.9 mm | 59.5 mm |
| 10 | 19.8 mm | 62.1 mm |
How to Measure Your Ring Size
Using an Existing Ring
Measure straight across the inside of a ring that fits, from one inner edge to the opposite inner edge. Match the measurement to the inside-diameter column above.
Measuring Your Finger
Wrap a thin strip of paper around the base of your finger. Mark where the ends meet, then measure the paper in millimetres. Match the result to the circumference column above.
Tips for an Accurate Measurement
- Measure at the end of the day when your fingers are at their normal size.
- If you are between sizes, choose the larger size.
Note: Measurements are approximate. Available sizing can vary by design. Confirm that the product uses US sizing before ordering.
Shop the Look
Ready to find your next piece? Browse our full Rings collection and use this guide to choose your perfect fit. With our sitewide Buy 2 Get 1 Free promotion, it's easy to build a stack once you know your size.
Looking for more styling guides? Check back for our upcoming posts on gold vs. gold-plated jewelry, how to pick earrings for your face shape, and seasonal gift guides.