Ring sizes
in the United States (US) are based on a
numbering system from 1 to 15 with 1/2 sizes in
between. One half size in the US system is
roughly equivalent to one whole size in the
British (UK) System which are measured by
alphabetical letter A-Z. The sizes are
also evenly spaced with 1/2 sizes in
between. European sizes are based on the
circumference measurement of the ring in
millimetres. The more general European
system of ring sizes use the inner circumference
(in mm) minus 40. Japanese (JP) sizes are
also a numerical system based on the ring's
diameter. One division being one third of
a millimetre starting with size 1, at 13mm
inside diameter.
The table
below will help you to convert a local standard
to the US standard of ring sizing. When ordering
your ring, please specify the US size
equivalent.
