Online Ring Size Chart. Mark the spot where the paperThread meets. If you dont have any of those you can even use paper.
The metric Diameter and Circumference measurements are listed below each ring size. To determine the most accurate ring size the ring should cover the circle so that the black circle touches the inside of the ring. Select a ring that properly fits the intended finger.
THE OFFICIAL INTERNATIONAL RING SIZE CONVERSION CHART Sizing Tool Use the circles below to judge sizes against your existing rings.
Use the following chart to determine your ring size. Step 3 - Mark the point on the stringpaper where it overlaps forming a circle. Follow the instructions on the PDF to find out what size it is. Heres how it works.