1, thin line measurement method Take a thin line with no elasticity, tighten it and just wrap it around the root of the finger, mark the intersection point of the line with a pen, then straighten the line, measure the length with a ruler and record the number of millimeters.

2. Hand-inch ring measurement It is cheap to buy an inch ring online. If you want to save trouble, you can buy one directly. Hand-inch rings are generally harder and thicker than rings. Be careful not to squeeze too much when measuring, so as not to be too loose or too tight.

3. It is inevitable that there will be errors when professionals measure at home. If you happen to pass by when you have time to go to a jewelry store or go shopping, you can measure and try it on for free in offline stores of some brands and find a ring that suits your hand.