Ring Size Guide

Size chart

SizeInner diameterCircumference
515.7 mm49.3 mm
616.5 mm51.9 mm
717.3 mm54.4 mm
818.1 mm57.0 mm
919.0 mm59.5 mm
1019.8 mm62.1 mm
1120.6 mm64.6 mm
1221.4 mm67.2 mm

If your measurement falls between two sizes, choose the larger size.

How to measure your finger

If you already own a ring that fits:

  • Measure the inner diameter in millimetres, edge to edge across the middle
  • Match that measurement to the Inner Diameter column above

If you do not have a ring to measure:

  • Wrap a strip of paper or a piece of string around the base of your finger
  • Mark where the ends overlap and measure the length in millimetres
  • Match that length to the Circumference column above

Measure at the end of the day, when fingers tend to be at their largest, and make sure the ring will pass over your knuckle.

Adjustable rings

Adjustable rings have an open band and are not tied to a numbered size. The band can be eased open or closed gently by hand to adjust the fit.