Measure an Existing Ring
  1. Take a ring that fits the finger you want
  2. Measure the internal diameter of that ring in mm
  3. 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
  1. Grab string, floss or a strip of paper and wrap it around your finger where you'd like the ring to be
  2. Make sure the string is pulled snug to find your best fit. No need to leave room to remove string or paper comfortably
  3. Mark the spot where both ends meet and measure distance with a ruler
  4. 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