Measure an existing ring
- Select an existing ring that fits the desired finger.
- Measure the internal diameter of the ring (in mm).
- Use the below chart to determine your ring size.
Internal Diameter
15.6
16.0
16.4
16.8
17.2
17.6
18.0
18.4
19.2
19.6
20.4
Andall's Size
5
5.5
6
6.5
7
7.5
8
8.5
9
10
11
Measure your finger
- Wrap a strip of paper around your finger where you’d like your ring to be.
- Make sure that the paper is pulled snug to your finger, the tighter the better, to find your best fit.
- Mark the spot where the paper meets and measure the distance with a ruler (mm).
- Use the below chart to determine your ring size.
Circumference
49.3
50.6
51.9
53.1
54.4
55.7
57
58.2
59.5
62.1
64.6
Andall's Size
5
5.5
6
6.5
7
7.5
8
8.5
9
10
11
