About Ring Sizes


Ring sizes are numerical or alphabetical values assigned to rings or fingers according to their size. The wide range of sizes allows for a system where people can find a ring that fits perfectly. A well-fitting ring is especially important for items such as wedding rings, which are expected to last a long time.

The correct ring size ensures comfort and prevents the ring from falling off or becoming too tight.


Your ring size is measured using different methods depending on where you live. In the United Kingdom, sizes are symbolised by different letters of the alphabet, and in other European countries, numbers are used. In the United States, numbers are also used, but they differ from European numbers. In general, the average size of a woman's ring finger is about 51 to 56mm on the inner circumference. In UK terms, this is L to P, European numbering 11 to 16, and 5 ¾ to 7 ¾ in the U.S.


Ring sizes take into account different types of finger shapes. Average fingers need rings that fit closely around the joint when slid on, but that stay comfortably in place once on. People whose joints are similar in size to the rest of their finger may have difficulty finding rings to stay on. The solution in such cases is to choose a slightly tighter size. The skin underneath the ring will eventually adapt for a more comfortable fit.


There are a few tools to help determine correct ring sizes. You can try to do-it-yourself measurement wrapping a piece of string around your finger or leave it to the professionals. Professional jewellers have a set of different ring sizes that can be tried on for accurate measurement. They might also use a chart that can be wrapped around your finger.

Time Frame

Getting your ring size measured is quick and easy. You can conveniently measure your ring size at home wrapping a piece of string around your finger and then measuring that string. At a jeweller, it usually just takes a few minutes as well. When ordering rings measured to specific sizes, if it's a typical size, it usually takes about two weeks to receive your ring.

Expert Insight

Whether you are purchasing a ring for yourself or for a loved one, finding the right size is extremely important. Thankfully, you do not have to work this out yourself. Go to any jeweller and they will be able to offer you advice on finding your ring size--or your loved one's. A jeweller will also suggest the best time of day for measuring, as fingers can be swollen or dry and "skinny" at various times during the day.