Check below conversion chart for all ring size measurements in cm and always make sure you manually measure your size using the ring size converter to avoid getting a ring that doesn’t fit your finger. Finally, you can download the Printable Ring Sizer to directly measure your ring size. You can also use the ring size converter to convert your ring size from cm to mm.
If you don’t have a ring and don’t know how to measure your ring size, you can check ring size conversion chart