Ring Size Calculator

Calculate ring size from finger circumference. US, UK, EU sizing. Printable ring sizer.

How to Measure

String Method

  1. Wrap a string around the base of the finger
  2. Mark where the ends meet
  3. Measure the string length in millimeters
  4. Enter the value above as circumference

Existing Ring Method

  1. Place a ring that fits well on a ruler
  2. Measure the inside diameter in millimeters
  3. Enter the value above as diameter

Full Size Chart

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