Step 1: Take a string
Step 2: Measure the ring end-to-end
Step 3: Unroll the paper strip and measure with a ruler from the edge to the pen mark. This is your finger’s circumference
Step 4: Use the table below to see your ring size, if it falls in the middle of two sizes, pick the larger one
| Internal diameter (mm) |
Ring Size |
| 15.9 | 10 |
| 16.3 | 11 |
| 16.6 | 12 |
| 16.9 | 13 |
| 17.3 | 14 |
| 17.6 | 15 |
| 17.9 | 16 |
| 18.3 | 17 |
| 18.6 | 18 |
| 18.9 | 19 |
| 19.2 | 20 |
Step 1: Take a strip of paper
Step 2: Wrap this around your finger tightly, mark with a pen where the paper meets
Step 3: Put it on a ruler and you now have the internal diameter of your ring
Step 4: Use the table below to see your ring size, if it falls in the middle of two sizes, pick the larger one
| CIRCUMFERENCE (MM) |
INTERNATIONAL RING SIZE |
| 50 | 10 |
| 51 | 11 |
| 52 | 12 |
| 53 | 13 |
| 54 | 14 |
| 55 | 15 |
| 56 | 16 |
| 57 | 17 |
| 58 | 18 |
| 59 | 19 |
| 60 | 20 |
