Terms

FingerSize is free to use for working out ring sizes, for yourself or for your customers. You may print the PDF sizer as often as you like, including in a shop.

A ring size from this site is a measurement, not a guarantee of fit. Fingers change size through the day and with the weather, wide bands fit tighter than thin ones, and jewellers cut to their own charts. Before an expensive or hard-to-resize ring, have the finger measured on a steel sizer.

We check every number on the site against the written definition of each sizing system and we test the charts automatically on every change, but we cannot accept liability for a ring that does not fit.

The pages, text and drawings are ours. The sizing systems themselves are not — they belong to the standards bodies and trades named on each chart.