GCGetCalculator
Embed
Everyday

Ring Size Converter

Convert a ring's inner diameter or circumference in millimeters to a US ring size, and an approximate EU size.

Embed this toolAdd as preferred on Google
US Ring Size
8
  • Diameter17.3 mm
  • Circumference54.35 mm
  • Approx. EU Size54

An approximation — for an important purchase, measure with a physical ring sizer or have it sized in person.

Related calculators

Age CalculatorBandwidth / Download Time CalculatorBase64 Encode / DecodeBra Size Calculator

Powered by GetCalculator.online