Ring Size Conversion Chart

Use the chart below for conversion of US and Canadian number sizes to the "Wheat sheaf" system of letter sizes used in Ireland, U.K. Australia, ect. Diameters and circumferences are also given in both inches and millimeters. Please note that these measurements are exact for the American system and approximate for the other sizing scales, since the intervals in each system do not correspond exactly.

Ring sizing gauges and finger gauges as well as published charts do not always agree. Add to this that there are two conflicting methods of reading ring gauges so it is quite common for ring sizes to vary slightly from one workshop or jeweler to another.

How to Determine Your Ring Size

DETERMINING YOUR RING SIZE

1. Cut a strip of paper about 5" long and about 1/4" wide.
2. Inspect the hand that will be wearing the ring. Find the widest part of the finger. Often, this will be at a joint, but it may be in a number of locations and may differ from hand to hand. You can use an old ring to help find the widest spot.
3. Wrap the paper strip around the widest part of the appropriate finger.
4. Use a pen or pencil to mark the point on the paper where the ends of the paper strip overlap (form a complete circle).
5. Use a ruler to measure the length from the outside end to the mark on the paper to the nearest 1/16" of an inch (decimal equivalents are given in the table) or millimeter, rounding up if necessary.
6. Find the closest measurement on the size chart to determine your ring size. Use millimeters for a more accurate size.