Size guide
Use the chart below to find your ring size. All measurements are in millimetres (mm). Sizes may vary slightly by brand.
Find my ring size
Enter your size above to see all conversions.
| US / Canada | UK / Australia | EU / France / Germany | Diameter (mm) | Circumference (mm) |
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All measurements are approximate. Between two sizes? Always size up — it's easier to resize a ring down than up.