Ring Size Guide
Find your perfect ring size with our easy at-home measurement methods and international conversion chart.
Method 1: Measure an Existing Ring
- Select a ring that fits the intended finger perfectly.
- Measure the inside diameter in millimeters (mm).
- Find your size in the conversion table below using the Inside Diameter column.
Method 2: Measure Your Finger
- Wrap a strip of paper or flexible measuring tape around your finger.
- Mark where the ends meet and measure the length in mm.
- This is your finger circumference — match it to the table below.
Tips for Accurate Measurement
- Measure at the end of the day when fingers are slightly larger.
- Measure when your hands are warm — cold fingers can be up to half a size smaller.
- For bands wider than 6mm, order half a size up.
- If between sizes, choose the larger size.
International Ring Size Conversion
| Inside Dia (mm) | Circumference (mm) | US / Canada | UK / Australia | EU / China | Japan |
|---|---|---|---|---|---|
| 14.1 | 44.2 | 3 | F | 44 | 4 |
| 14.9 | 46.8 | 4 | H | 46 | 7 |
| 15.7 | 49.3 | 5 | J | 49 | 9 |
| 16.5 | 51.9 | 6 | L | 51 | 12 |
| 17.3 | 54.4 | 7 | N | 54 | 14 |
| 18.2 | 57.0 | 8 | P | 57 | 16 |
| 19.0 | 59.7 | 9 | R | 59 | 18 |
| 19.8 | 62.3 | 10 | T | 62 | 20 |
| 20.6 | 64.9 | 11 | V | 64 | 22 |
| 21.4 | 67.4 | 12 | X | 67 | 24 |
Not sure about your size? Contact support@mirametaljewelry.com — we offer one free size exchange within 30 days of purchase.