Size Guide

Internal Diameter (mm) US/CANADA RING SIZE UK/AUSTRALIA RING SIZE
14.1 3 F
14.9 4 H
15.7 5 J
16.5 6 L
17.3 7 N
18.1 8 P
19.0 9 R
19.8 10 T
20.6 11 V
21.4 12 X
22.2 13 Z