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Wrap it up
Take a non-stretchy string, ribbon, or a thin strip of paper. Gently wrap it around your finger, close to the knuckle.
Mark the spot
Use a pen to mark where the string or paper overlaps. Try to keep the mark as small as possible for accuracy.
Measure it
Unwrap the string and lay it flat next to a ruler. Measure the length in millimeters or inches—this measurement is the circumference of your ring size.
Ring Size | Diameter, mm | Circumference, mm | Diameter, inches | Circumference, inches |
---|---|---|---|---|
3 | 14.1 | 44.3 | 0.55 | 1.74 |
4 | 14.9 | 46.8 | 0.59 | 1.84 |
5 | 15.7 | 49.3 | 0.62 | 1.94 |
6 | 16.5 | 51.8 | 0.65 | 2.04 |
7 | 17.3 | 54.3 | 0.68 | 2.14 |
8 | 18.1 | 56.9 | 0.71 | 2.24 |
9 | 18.9 | 59.4 | 0.75 | 2.34 |
10 | 19.8 | 62.2 | 0.78 | 2.44 |
11 | 20.6 | 64.7 | 0.81 | 2.54 |
12 | 21.4 | 67.2 | 0.84 | 2.65 |
13 | 22.2 | 69.7 | 0.87 | 2.75 |
14 | 23.0 | 72.3 | 0.91 | 2.85 |
15 | 23.8 | 74.8 | 0.94 | 2.95 |
16 | 24.6 | 77.3 | 0.97 | 3.05 |