Method 1

Use a thread or paper

  1. Take a piece of thread or paper and wrap it around the base of your finger.
  2. Mark where the thread or paper overlaps with a pen.
  3. Measure the length of the thread or paper with a ruler or measuring tape in millimeters.
  4. Compare the measurement to the standard ring sizes on the size chart.

Method 2

Use a ring that fits you perfectly

Take a ring that fits you well and measure the largest distance between the inner edges of the ring to get the inner diameter in millimeters.
Use the size chart to find out your size.