Short answer: To measure your ring size at home, wrap a strip of paper or string around the base of your finger, mark where it overlaps, and measure that length in millimeters. That number is your finger circumference. Match it to a ring size chart, or use our free ring size calculator for an instant result. Measure at the end of the day, when fingers are at their largest.
How do I measure my ring size at home?
You do not need a jeweler. The two easiest ways are the string or paper method and measuring a ring you already own. Both take a minute and get you close enough to order with confidence.
The string or paper method, step by step
1. Cut a thin strip of paper or a piece of string. 2. Wrap it snugly around the base of the finger, just below the knuckle. 3. Mark where the end overlaps. 4. Lay it flat and measure the length in millimeters. 5. That length is your circumference. Compare it to the chart below or enter it into the calculator.
Measure a ring you already own
If you have a ring that fits the right finger, measure the inside diameter across the middle in millimeters and match it to a chart. This is a reliable way to size a surprise gift without asking.
Ring size chart (US)
| Inside circumference (mm) | US ring size |
|---|---|
| 49.3 | 5 |
| 51.9 | 6 |
| 54.4 | 7 |
| 57.0 | 8 |
| 59.5 | 9 |
| 62.1 | 10 |
Tips for an accurate measurement
Measure when your hands are warm and at the end of the day, since fingers shrink in the cold and morning. Measure the actual finger you will wear the ring on, as sizes differ between hands. If you are between sizes, size up, especially for wider bands. Take the average of two or three measurements for the best result.
Shop the look
Try our free ring size calculator, then browse rings and the wider jewelry collection at Fashorio. For more, read our guide on how to layer necklaces. For the standards behind sizing, see ring size on Wikipedia.
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