Ring Sizing Tool
Printable Ring Sizer
Print this page at home and match your finger to the circles below to find your US ring size.
Ring Size Chart
Print at 100% scale — do not scale to fit
Place your finger over each circle below, starting near your expected size. The correct circle will slide comfortably over your knuckle and sit snugly at the base of your finger. Gold-outlined circles marked with ★ indicate the two most common women’s sizes (US 6 & 7). If between sizes, choose the larger size.
★ Gold circles = most common women’s sizes. If between two sizes, choose the larger size for comfort.
| US | EU | UK | Inner Diameter (mm) | Circumference (mm) |
|---|---|---|---|---|
| 4 | 46–47 | H | 14.86 | 46.7 |
| 4½ | 47–48 | I | 15.27 | 48.0 |
| 5 | 49 | J½ | 15.70 | 49.3 |
| 5½ | 50–51 | K½ | 16.10 | 50.6 |
| 6 ★ | 51–52 | L½ | 16.51 | 51.9 |
| 6½ | 53 | M½ | 16.92 | 53.1 |
| 7 ★ | 54–55 | N½ | 17.35 | 54.5 |
| 7½ | 55–56 | O½ | 17.75 | 55.7 |
| 8 | 57 | P½ | 18.19 | 57.2 |
| 8½ | 58 | Q½ | 18.61 | 58.5 |
| 9 | 59–60 | R½ | 19.05 | 59.8 |
| 9½ | 60–61 | S½ | 19.45 | 61.1 |
| 10 | 62 | T½ | 19.84 | 62.3 |
| 10½ | 63 | U½ | 20.26 | 63.6 |
| 11 | 64 | V | 20.68 | 65.0 |
| 12 | 66–67 | X | 21.49 | 67.5 |
| 13 | 69 | Z | 22.33 | 70.1 |
Best Time to Measure
Measure in the afternoon. Fingers are smallest in the morning and swell throughout the day. Avoid measuring when cold or after exercise.
Account for Your Knuckle
If your knuckle is larger than your base, size to fit the knuckle and choose a narrow band to minimise movement at the base.
Wide Bands
For bands wider than 6mm, size up by half a size for a comfortable all-day fit. Wide bands compress the finger more than narrow styles.