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Ring Size Conversion

How do you measure ring size?


Fingers can change size a little throughout the day, so you'll want to try and measure them at their biggest. To do this, take the measurement in the evening and make sure your fingers aren't cold.

  1. Decide which finger the ring will be worn on and grab a length of string, a felt tip pen and a ruler.
  2. Take the string and wrap it around the base of your finger. Make sure it's snug but not too tight - you're aiming to replicate a ring fitting comfortably. 
  3. Using the pen, make a mark where the string crosses over.
  4. Use the ruler to measure the marked length of string in mm.
  5. You now have the circumference of your finger. Find your measurement on our on our ring sizer below.