01
PREP YOUR TOOL
Use a string or paper to wrap around the desired area / base of your finger.
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01
PREP YOUR TOOL
Use a string or paper to wrap around the desired area / base of your finger.
02
WRAP & MARK
Mark the point where the ends meet with a pen.
03
NOTE THE SIZE
Using a ruler, measure the length of the marked points on string or paper. This will give you the circumference of the ring.
Circumference
Diameter
| US | UK | Circumference (mm) | Diameter (mm) |
|---|---|---|---|
| 5 | J 1/2 | 49.3 | 15.6 |
| 6 | M | 51.9 | 16.5 |
| 7 | O | 54.4 | 17.3 |
| 8 | Q | 56.9 | 18.2 |
| 9 | R1/2 | 59.5 | 19.0 |
| 10 | T 1/2 | 62.1 | 19.8 |





