Ring Sizes
Discovering your ring size is easy! Simply get hold of an existing ring that fits
and, holding the ring side-on, take the INTERNAL diameter measurement in mm (i.e.
the left-to-right measurement of the hole) and equate it to the chart below.
|
British
|
US Size
|
Diameter (inch)
|
Diameter (mm)
|
Metric - MM
|
|
I
|
4 1/4
|
-
|
15.04
|
47.1
|
|
J
|
4 5/8
|
-
|
15.4
|
48.1
|
|
K
|
5 1/8
|
-
|
15.8
|
49.3
|
|
L
|
5 1/2
|
0.634
|
16.1
|
50.3
|
|
M
|
6
|
0.65
|
16.51
|
51.5
|
|
N
|
6 1/2
|
0.666
|
16.92
|
52.8
|
|
O
|
7
|
0.683
|
17.35
|
54
|
|
P
|
7 1/2
|
0.699
|
17.75
|
55.3
|
|
Q
|
8
|
0.716
|
18.19
|
56.6
|
|
R
|
8 5/8
|
-
|
18.61
|
58.4
|