Tape measure, you can wrap your finger with tape measure to measure the size of your finger; String, you can wrap your fingers with inelastic string once, and then measure the length of the starting point and ending point of the wound string. Try it on, you can try it on in a professional jewelry store and measure it with professional tools.

A tape measure can be used to measure the size of a ring. When measuring, the finger with the ring shall prevail. Wrap a tape measure around your finger and you can get the size of the ring. When choosing the size, it is recommended to choose the size whose inner diameter is 1-2mm larger than that of the finger.

The string can be used to measure the size of the ring with inelastic string. Wrap the string around the thickest part of the finger twice, tighten the string a little, mark the intersection of the starting point and the end point with a pen, and finally straighten the rope, and measure the distance between the starting point and the end point with a ruler.

You can try it on in the specialty store. Generally, jewelry stores have professional measuring tools, and you will choose the appropriate size to try on according to the size of your fingers. Generally, after wearing it, you can turn it on your finger, preferably.