Ring Size Guide
MEASURE AN EXISTING RING
1. Select an existing ring that fits your desired finger
2. Measure the internal diameter of the ring in MM
3. Use the chart below to measure your ring size
DOWNLOAD GUIDE
Already know your size in another country's standard?
Use the conversion chart below to determine your US ring size
| Inside Diameter | Inside circumference | Ring Size | ||
|---|---|---|---|---|
| mm | mm | uk | us & canada | eu |
| 14.65 | 46.02 | h | 3 3/4 | 46 1/2 |
| 15.04 | 47.25 | I | 4 1/4 | 47 3/4 |
| 15,40 | 48.38 | J | 4 5/8 | 49 |
| 15.80 | 49.64 | K | 5 1/8 | 50 |
| 16.10 | 50.58 | L | 5 1/2 | 51 3/4 |
| 16.51 | 51.87 | M | 6 | 52 3/4 |
| 16.92 | 53.16 | N | 6 1/2 | 54 |
| 17.35 | 54.51 | O | 7 | 55 1/4 |
| 17.75 | 55.76 | Р | 7 1/2 | 56 1/2 |
| 18.19 | 57.15 | Q | 8 | 57 3/4 |
| 18.61 | 58.47 | R | 8 5/8 | 59 |
| 19.10 | 60 | S | 9 1/8 | 60 1/4 |
| 19.51 | 61.29 | T | 9 5/8 | 61 1/2 |
| 20.02 | 62.89 | U | 10 1/4 | 62 3/4 |
| 20.32 | 63.84 | V | 10 5/8 | 63 |
| 20.76 | 65.22 | W | 11 1/8 | 65 |
| 21.18 | 66.54 | X | 11 5/8 | 66 1/4 |
| 21.49 | 67.51 | Y | 12 | 67 1/2 |
| 21.89 | 68.77 | Z | 12 1/2 | 68 3/4 |
