Ring Size Guide

Need help finding your perfect ring size? Follow one of the two quick and simple methods to find just the right fit for you or your loved one.

1. Measure your finger

All you need to find your ring size is a strip of paper, a pen and a ruler. Start by cutting out a thin, long strip of paper. Wrap the piece of paper around the finger you would like to wear your new ring on. Then mark the area on the paper strip where the two ends overlap with the pen.

Next, use the ruler to measure the marked length. The result in millimeters gives you the circumference of your ring. Use the conversion table below to find the corresponding ring size. For example, a circumference of 56 mm corresponds to ring size 16.

2. Measure a ring you own

Another way to find the perfect size is to use a ring that fits the finger you wanna wear your new ring on as a reference point. This method also works when secretly trying to find the right ring size to surprise a loved one.

Start by choosing which finger you’d like your new ring to sit on, then select an existing ring that already fits comfortably on it. Measure the inner diameter of the ring with a ruler. Use the conversion table below to determine the corresponding ring size. For example, a diameter of 18.45 mm corresponds to ring size 18. If your existing ring falls between two sizes, we advise sizing up.

Ring Size Chart

Our size
Circumference
In millimeters
Diameter (inside)
In millimeters
US
14
44
14
3
14.5
45.5
14.5
3.5
14.8
46
14.7
3.75
15
47
15
4
15.25
48
15.3
4.5
16
50
16
5
16.2
51
16.2
5.5
16.5
52
16.5
6
17
54
17.4
7
17.5
55
17.6
7.3
18
58
18
8
19
60
19
9
20
62
19.8
10
20.5
64
20.4
10.5