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Ring Size Converter

This converter requires the use of Javascript enabled and capable browsers. This script converts a selected ring size from any of the possible regions, to the ring size designation used in other countries. Select any ONE ring size in the drop box selectors, any that are directly convertible will be shown in the region applicable. This is a very close approximation.

If you don't know your ring size, take a piece of string and wrap it around your ring finger where you would wear the ring. Mark the point where the end contacts the length of the string and measure the distance of that string, representing the CIRCUMFERENCE of your finger. You can enter that amount in the circumference box or divide it manually by PI (3.1417) to get the diameter of your finger.

Regional Standards
Size Designation
Select Any Single Ring Size Conversion
American Size
British Size
French Size
German Size
Japanese Size
Swiss Size
Circumference MM
Diameter Inches
Diameter MM

Updated 8.12.11

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