Measure The Inside diameter of a ring that fits right to you

Once you have this measure, you can find your size in the table below. Please keep in mind: your ring size can fluctuate about a half size, based on your temperature, hydration levels, hormones, etc.


Desired Ring Size Spain / Italy France / Germany UK / Australia US / Canada Japan / China Measure
18 18 58 Q 8 17 18.2mm
21 S 1/2 9.5 19.2mm
23 U 1/2 10.5 19.99mm