In the united states canada and mexico for indicating a rings size uses a numerical measure for whole and half rings sizes an increase of a full ring size is an increase of 0 032 inch 0 8128 mm in diameter or roughly 1 10 inch in inside circumference.
Ring size 20 mm diameter.
1 source for determining your finger and ring size in all of the world s international ring sizing standards.
It shows ring sizes in both inches and mm plus internal diameter and external diameter.
A 20 2 mm is a 10 5 in the us while a 19 8 is a 10.
Print the the ring size chart.
To make sure it s printed to actual size choose scale 100 when selecting your print options.
It also shows conversions between the numerical usa asia and alphabetical australia uk ring size measuring systems.
International ring size conversion chart.
Below is our full ring size chart.
If you are measuring the diameter of the ring which one can assume given the size then it is about a 10 1 4 ring size.
The information presented here has been compiled from many sources in various countries to help you determine your local ring size compared to those from other countries.
Speak with a diamond expert now by calling 866 737 0754.
Below is our full ring size chart.
It also shows conversions between the numerical usa asia and alphabetical australia uk ring size measuring systems.
Welcome to the no.
Use our ring size conversion chart below to find your ring size in different countries.
Ring diameter mm usa canada.
Ring measurements are very precise.
There are several systems for indicating a rings size used around the world.