Unit Conversion
20.8mm to Ring Size
Convert 20.8 millimeters to standard ring sizes (US, UK, EU)
Conversion Result
20.8 millimeters = 20.8 mm diameter
12
US Size
W
UK Size
66
EU Size
Diameter: 20.8mm | Circumference: 65.3mm
Need to Measure a Ring?
Use our free online ring sizer to get accurate measurements using your phone screen.