Measure a ring you already own
- 1Choose a ring that already fits the correct finger comfortably.
- 2Measure the inside diameter straight across the center of the ring in millimeters.
- 3Match that diameter to the chart below to find your US size.
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Ring Size Guide
Find the perfect fit,beautifully.
Use the guide below to measure confidently before placing your order. For proposal rings or surprise gifts, start with a ring that already fits and compare it to the chart.
Use a strip of paper or string
- 1Wrap a thin strip of paper or non-stretch string around the base of your finger.
- 2Mark where the ends meet, then lay it flat and measure the length.
- 3Compare the fit to a ring size chart or use the diameter method for the closest match.
Visit a local jeweler
- 1Ask for a professional finger sizing using metal ring sizers.
- 2Have them measure the exact finger and hand where the ring will be worn.
- 3Use that measurement when ordering for the most precise fit.
International Conversion
US, UK, EU, and diameter at a glance.
Use this chart to compare common international sizing systems and find the closest match in millimeters.
| US | UK | EU | Diameter |
|---|---|---|---|
| 3 | F | 44 | 14.1 mm |
| 3.5 | G | 45 | 14.5 mm |
| 4 | H | 46.5 | 14.9 mm |
| 4.5 | I | 47.5 | 15.3 mm |
| 5 | J | 49 | 15.7 mm |
| 5.5 | K | 50 | 16.1 mm |
| 6 | L | 51.5 | 16.5 mm |
| 6.5 | M | 52.5 | 16.9 mm |
| 7 | N | 54 | 17.3 mm |
| 7.5 | O | 55 | 17.7 mm |
| 8 | P | 56.5 | 18.1 mm |
| 8.5 | Q | 57.5 | 18.5 mm |
| 9 | R | 59 | 18.9 mm |
| 9.5 | S | 60 | 19.4 mm |
| 10 | T | 61.5 | 19.8 mm |
Accuracy Tips
A few details make all the difference.
- Measure at the end of the day when your fingers are at their natural size.
- Avoid measuring when your hands are very cold or very warm.
- If you are between sizes, choose the larger size for a more comfortable fit.
- Wider bands usually feel tighter, so consider sizing up slightly for substantial settings.
- Measure the exact finger the ring will be worn on, since each finger can fit differently.
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