Hand inch is a technical term in the jewelry industry, which refers to the size of the ring. Based on the diameter and circumference of the inner ring, it is divided into different turns, which is convenient for production and wearing. Most people's hands are between 4 and 26 inches. The safest way to measure it is to ask the clerk in the jewelry store to measure it for both of you, or you can measure it yourself and publish it online.

The finger width, that is, the diameter and the ring size are compared as follows:

If the finger width is 18mm and the finger circumference is 58mm, then the ring number 18 is the most suitable.

Extended data:

Hand-inch is divided into Hong Kong style and American style, and China mostly adopts Hong Kong style. Matters needing attention in measuring hand inch:

1, time:

The human body expands with heat and contracts with cold, and the fingers will change in the four seasons and one day. In a day, noon is the hottest and most swollen time of the day, which is not suitable for measurement, and it is cold in the morning and evening. Therefore, the normal time of measurement should be chosen in the morning and evening as far as possible.

2. Location:

Usually measure the finger roots of rings, but experienced professionals point out that some people's knuckles are thicker than the finger roots. When measuring hand inches, the so-called "bamboo-shaped" hand should measure the size of finger joints. The measured finger size of the ring will not be thicker, and it will be looser to wear, but it will not fall off. If you want to make the ring more suitable, you might as well wrap some cotton thread around it.