How To Measure a Ring you Already Have

If You Have a ring That Already Fits Your Finger Well, You Can Use a Ruler to Measure the inside Diameter of the Ring:

Take Your Ruler and Measure Straight a Cross the inside of the ring from edge to edge.

- Another Way

Take a Length of floss or String and Wrap it arround the base of your finger. mark where the floss or ring first overlaps with a pen. stretch the length of string out a long a ruler or measuring tape, and take down the length.