Ring sizing guide
Four ways to find your size.
1. Get sized at a department store
Most department store jewelry departments (Nordstrom, Macy's, Hudson's Bay, etc.) will size your finger for free — no purchase necessary. It's also a great chance to try on styles you like and get a feel for different widths and metals.
2. Print our sizer
Download our PDF sizer, print it at 100% scale (no "fit to page"), and wrap one of the strips around the base of your finger. The size your finger lines up with is your ring size.
Download PDF →3. Measure an existing ring
Find a ring you already wear on the same finger. Measure the inside diameter in millimeters with a ruler, then match the diameter to our conversion chart:
| US size | Inside diameter | Circumference |
|---|---|---|
| 4 | 14.9 mm | 46.8 mm |
| 4½ | 15.3 mm | 48.0 mm |
| 5 | 15.7 mm | 49.3 mm |
| 5½ | 16.1 mm | 50.6 mm |
| 6 | 16.5 mm | 51.9 mm |
| 6½ | 16.9 mm | 53.1 mm |
| 7 | 17.3 mm | 54.4 mm |
| 7½ | 17.7 mm | 55.7 mm |
| 8 | 18.1 mm | 57.0 mm |
| 8½ | 18.5 mm | 58.3 mm |
| 9 | 19.0 mm | 59.5 mm |
| 9½ | 19.4 mm | 60.8 mm |
| 10 | 19.8 mm | 62.1 mm |
| 10½ | 20.2 mm | 63.4 mm |
| 11 | 20.6 mm | 64.6 mm |
| 11½ | 21.0 mm | 65.9 mm |
| 12 | 21.4 mm | 67.2 mm |
| 12½ | 21.8 mm | 68.5 mm |
| 13 | 22.2 mm | 69.7 mm |
| 14 | 23.0 mm | 72.3 mm |
4. Order a ring sizer
Pick up an inexpensive plastic ring sizer set on Amazon — they're accurate, reusable, and ship fast.
Shop ring sizers on Amazon →