• Find a reference ring: If you already have a ring that fits well on the finger you want to measure on, use that as a reference point to determine your size.

  • Prepare the materials: Get a ruler and a piece of paper to take measurements.

  • Measure the inner diameter of the ring: Place the ring you have selected as a reference on the paper. Draw the inner circle of the ring. Remove the ring. Take the ruler and place it horizontally on the circle you have made, right in the center. Make sure the ruler is completely straight. Write down the millimeters you get, since that will be the internal diameter.

We leave you an example:

sibila-studio-size-guide-ring-meter-millimeters-what-ring-size-do-I-wear-ring-size-guide

  • Use a conversion table: See our ring size conversion table, which We show below, which relates the diameter measurement to the corresponding size. Look for the millimeters you noted and find the corresponding ring size.