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About Ring Size Converter

Perfect Fit for Jewelry

The Ring Size Converter helps you determine your ring size based on physical measurements or convert between country standards. It is perfect for buying engagement rings or fashion accessories online.

Measurement Methods

  • Diameter: Measure the inside width of an existing ring.
  • Circumference: Wrap a string around your finger and measure the length.

Standards

We support the US/Canada scale (numbers like 7, 8.5) and the UK/Australia scale (letters like N, O, P). Enter your measurement in millimeters to find the closest match.