1. Wrap a thin strip of paper around the base of your finger. If you have larger knuckles, measure both. (You may want to choose a size between the to allow the ring slip on comfortably).

2. Mark the spot where the paper meets.

3. Measure the paper's distance with a ruler.

4. Use the chart to determine ring size. To size a ring you already have, lay it directly into the chart so that the black circle touches the ring's inner circle.