Wrap the strip of paper tightly around your desired finger.
Using a pen or pencil, mark the point where the paper overlaps itself.
Lay the strip of paper on a flat surface and use a ruler to measure the distance from the end of the strip to the marking you made, in millimetres. This will give you a measurement of the circumference of your finger.
Using the chart, convert your measurement into a standard US ring size.
LENGTH (MM)
US & Canada
UK & AU
EUROPE
49.3
5
J
49.3
51.8
6
L
51.9
54.3
7
N
54.4
56.9
8
P
57
59.4
9
R
59.5
62.2
10
T
62.1
64.7
11
V
64.6
67.2
12
X
67.2
69.7
13
Z
69.7
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