Hello, I am making a pair of rings for a cutomer in Sweden. They
have given me the sizes as 18 3/4 and 21 1/2. I can’t seem to find a
reference to this type of sizing to convert to mm. Does anyone know
what the formula is or have a link to a chart? Thanks, Douglas.
Go to Cooksongold: Jewellery Making Supplies | UK Supplier
and click on the knowledgebase link and enter the phrase european
ring sizing and you will get a chart as a pdf. Basically they are
internal ring diameters in millimetres Nick Royall
Size 19 is Swiss is in America 8 5/8 and 21 1/2 =9 5/8
If you need a copy of my chart email off line and I will either fax
it or email to you
Andy “The Tool Guy” Kroungold
search fingersize chart wikipedia has a good one, in direct answer
ID of size 18 1/4 is 18.54mm ID of size 19 is 18.75mm: size 21.5 is
listed 19.56mm ID
Dear Douglas, there is a great tool for making rings, it is a small
plastic ring sizer that you could mail to your customer and have it
sent back. I buy mine from Tripps.com. They only cost a few dollars,
a great investment to guarantee just the right size. blessings pat
that seems odd. in Norway, where I used to live, and Sweden’s
neighbor, they used the internal measurement in mm… here. found it,
on this page:
Hi
I’m from Sweden.
We use the German size o in mm.
So 18 3/4 is 18,75 mm and 21 1/2 is 21,5 mm
That is in U. S. Size 8 3/4 and 12 1/4
Adding a International ring sizing pdf file
Hans Hansson
Sweden