Step 1: Wrap a Strip Around Your Finger
Cut a thin strip of paper. Wrap it around the base of your finger.
Step 2: Mark the Spot
Use a pencil or pen to mark where the end of the strip overlaps.
Step 3: Measure the Length
Unwrap the paper and use a ruler to measure the distance in mm or inches.
Step 4: Find Your Ring Size
Use the chart below to match your measurement with the correct ring size.
If you measured in inches, convert to mm first (mm = inches × 25.4)
Example:
If your measured length is 2.3 inches (58.4 mm), that’s approximately a US size 8,5.
| US Size | Measured Length (mm) |
|---|---|
| 4 | 46.5 mm |
| 4.5 | 47.8 mm |
| 5 | 49.3 mm |
| 5.5 | 50.6 mm |
| 6 | 51.8 mm |
| 6.5 | 53.1 mm |
| 7 | 54.4 mm |
| 7.5 | 55.7 mm |
| 8 | 57.0 mm |
| 8.5 | 58.3 mm |
| 9 | 59.5 mm |
| 9.5 | 60.8 mm |
| 10 | 62.1 mm |
| 10.5 | 63.4 mm |
| 11 | 64.6 mm |
| 11.5 | 65.9 mm |
| 12 | 67.2 mm |