Any Calculator

Ring Size Calculator
Your size Diam. inch. Diam. mm Circum. mm

Select a ring size in one category, the measurements will automatically change.

How to determine your ring size

  1. Wrap a piece of string , paper or tape around your finger.
  2. Mark the point where the two ends meet.
  3. Measure the string, paper or tape to get the circumference of your finger.
  4. Divide that by 3.14 to get the diameter of your finger.
  5. Calculate your ring size using the calculator above and compare.



Finding the correct size ring.

1. If you have a ring that fits the finger your new ring is intended for, one of the easiest ways to find out its size (if you don't know already, of course) is to use the ring size calculator above.

2. If you DON'T already have a ring that fits If this is the first ring you are buying for this particular finger, there is a simple way to measure: Wrap a strip of paper around the finger you are measuring Mark the piece of paper with a pen where it overlaps Measure the distance from the edge of the paper strip to the mark This is the circumference To get the diameter, please divide by Pi (3.14).

3. Remember this calculator is an estimate of the ring size needed. The most precise way to find your ring size is to have a jeweler do it, but you can also easily calculate it at home.