Ring Size Converter

USA size
Circumference (mm)
British size 1/2
European size
Diameter (mm)
Japanese size
Notes
It is very important to have a good fit for your new ring as you will be wearing it for many years. If you are uncertain about your ring size, please measure your finger using the instructions below.

1. Cut a strip of paper approximately 1/4 inch wide
2. Wrap the paper snugly around the widest part of your finger and mark the paper where it meets. Please bear in mind that the widest part may not be your finger joint
3. Measure the marked length of paper in millimeters and insert the measurement into the circumference box above.