Ring Size Conversion


Ring Size Chart for US, UK, Australia, China, Canada, Japan





Convert ring sizes between american, british, australian, canadian, chinese, japanese and in inches and millimeters (mm) for diameter and circumference.

In order to convert ring sizes, select a jewelry ring (wedding, engagement, diamond etc) size from the table below, like american ring size 1,2,3,4,5,6,7,8,9,10,11 etc, the other's will show the equivalent sizing.

For your information, circumference of a ring is the measure of the length around the circle.

The diameter of a ring is the measure of the distance across the middle inside.




Convert Rings Sizes


Please select a size from below, the others will show the equivalent sizes.

US / Canada UK / Australia Japan China
Diameter (inch) Diameter (mm) Circumference (inch) Circumference (mm)