How to measure your ring size:
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Pick a ring that already fits the finger you want to measure.
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Lay the ring flat on a table.
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Use a ruler (with millimeters if possible) and measure the inside diameter of the ring — straight across the middle from one inner edge to the other.
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Note the measurement in (cm).
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Match your measurement to a ring size chart.
Here's a quick example:
| Diameter (cm) | US Size |
|---|
| 1.48 cm | 4 |
| 1.57 cm | 5 |
| 1.65 cm | 6 |
| 1.73 cm | 7 |
| 1.81 cm | 8 |
| 1.90 cm | 9 |
| 1.98 cm | 10 |
| 2.06 cm | 11 |