Because our rings are not adjustable, it pays off to make an effort and take some time to select the right size of ring, as the size of your fingers changes, even within the same day. Early in the morning, and again in the evening, fingers are usually slightly swollen, and the same happens when the weather is hot. In the middle of the day and in cool weather, the circumference of your fingers is smaller. That is why it is best to try on rings in the middle of the day at normal room temperature. Because finger size varies according to the time of day and weather conditions, your ring may seem a bit loose or tight at times, but in regular use over time, your finger will adapt to the ring.
Kalevala’s ring sizes equal the inner diameter of the ring in millimeters. The other commonly used ring size system is based on the inner circumference of the ring. The conversion table shows how these two correspond to each other. Many other ring size standards are in use around the world. If, for example, you know your ring size according to the North American ring size standard, you can check the size in inner diameter from a conversion table available online.