Measure an Existing Ring
- Take a ring that fits the finger you want
- Measure the internal diameter of that ring in mm
- Use the chart below to find your size
International Diameter(MM)
14.1
14.9
15.7
16.5
17.3
18.1
19.0
19.8
20.6
21.4
22.2
US/Canada Ring Size
3
4
5
6
7
8
9
10
11
12
13
UK/Australia Ring Size
F
H
J
L
N
P
R
T
V
X
Z
Measure with String
- Grab string, floss or a strip of paper and wrap it around your finger where you'd like the ring to be
- Make sure the string is pulled snug to find your best fit. No need to leave room to remove string or paper comfortably
- Mark the spot where both ends meet and measure distance with a ruler
- Use the below chart to find your size
Circumference(MM)
44.2
46.8
49.3
51.9
54.4
57.0
59.5
62.1
64.6
67.2
67.7
US/Canada Ring Size
3
4
5
6
7
8
9
10
11
12
13
UK/Australia Ring Size
F
H
J
L
N
P
R
T
V
X
Z