US Ring Size Guide
Measuring Your Ring Size
-
Using string, ribbon, a strip of paper or a flexible Measuring Tape:
- Wrap a piece of string, ribbon, a strip of paper, or a flexible measuring tape around the base of your finger.
- Make sure it’s snug but not too tight.
- Mark where the ends meet and measure the length with a ruler. Compare the length you measured to the sizing chart below to determine your size.
- For example if the pice of string you used to wrap around your finger measures 44mm or 1.73 inches, you would be a US ring size 3.
US Ring Size Chart
The measurements below represent the inside circumference of the ring.
| US Size | Inside Circumference (mm) | Inside Circumference (inches) |
|---|---|---|
| 3 | 44.2 mm | 1.74 inches |
| 3.5 | 45.5 mm | 1.79 inches |
| 4 | 46.8 mm | 1.84 inches |
| 4.5 | 48.0 mm | 1.89 inches |
| 5 | 49.3 mm | 1.94 inches |
| 5.5 | 50.6 mm | 1.99 inches |
| 6 | 51.9 mm | 2.04 inches |
| 6.5 | 53.1 mm | 2.09 inches |
| 7 | 54.4 mm | 2.14 inches |
| 7.5 | 55.7 mm | 2.19 inches |
| 8 | 57.0 mm | 2.24 inches |
| 8.5 | 58.3 mm | 2.29 inches |
| 9 | 59.5 mm | 2.34 inches |
| 9.5 | 60.8 mm | 2.39 inches |
| 10 | 62.1 mm | 2.44 inches |
| 10.5 | 63.4 mm | 2.50 inches |
| 11 | 64.6 mm | 2.54 inches |
| 11.5 | 65.9 mm | 2.60 inches |
| 12 | 67.2 mm | 2.65 inches |
| 12.5 | 68.5 mm | 2.70 inches |
| 13 | 69.7 mm | 2.75 inches |
| 13.5 | 71.0 mm | 2.80 inches |
| 14 | 72.3 mm | 2.85 inches |
| 14.5 | 73.6 mm | 2.90 inches |
| 15 | 74.8 mm | 2.94 inches |
| 15.5 | 76.1 mm | 2.99 inches |
| 16 | 77.4 mm | 3.05 inches |
| 16.5 | 78.7 mm | 3.10 inches |
| 17 | 80.0 mm | 3.15 inches |
| 17.5 | 81.2 mm | 3.20 inches |
| 18 | 82.5 mm | 3.25 inches |
| 18.5 | 83.8 mm | 3.30 inches |
| 19 | 85.1 mm | 3.35 inches |
| 19.5 | 86.4 mm | 3.40 inches |
| 20 | 87.6 mm | 3.45 inches |
Tips for Finding Your Ring Size
- Time of Day: Your fingers can swell throughout the day, so measure them when they are at their average size (not too hot or cold).
- Multiple Measurements: If you're unsure, measure a couple of times to confirm your size.
- Consider Ring Width: If you're choosing a wide band ring, consider going up half a size for comfort.
