If you want to know your size before you buy a silver ring, you can easily find out your ring size with an old ring you use and a ruler that determines the millimeter range. For this measurement, you should measure a ring that you have used before and that is suitable for your finger with the help of a ruler. Although the millimetric measurement system on the ruler helps you find your ring size, this measurement only measures the space where your finger will enter, not the metal part of the ring. In short, the mm measurement that emerges in the measurements made with this technique corresponds to a number in the ring measurement table. For example, a ring measuring 17mm is equal to ring number 14. With this simple measuring technique, you can buy the rings directly without having to try them out.