How to Measure

  1. Take a piece of string or a thin strip of paper.
  2. Wrap it around the base of the finger you want to wear the ring on.
  3. Mark the point where the end meets.
  4. Use a millimetre ruler to measure the length of the string.
  5. Reference this measurement in the conversion chart below.

If you already know your ring size in another country's system, use the conversion chart to find your Hatton Labs size.

Download Size Guide PDF

International Conversion Chart

Diam (mm)Circ (mm)US / CAUK / AUEUJPHKKP
17.454.57N55141513
18.257.28P57161715
18.959.39R59181916
19.461.09.5S61192118
19.862.310T62202219