The diameter of the Hong Kong Code 9 ring is 15.2mm and the circumference is 50mm, which belongs to the size of a women's ring.
How to measure finger size
1. Paper strip measurement method
Prepare a thin piece of paper or thread, wrap it around the base of your finger, mark it with a pen, unfold it, and measure the length with a ruler. This value is the circumference of the ring you need to purchase.
2. Compare with old ring
Take out an old ring with a suitable finger size, measure the inner diameter of the ring with a ruler, and try to accurately measure the length to 0.1 millimeters.
3. Professional tool measurement
The ring size bar is a tool specifically used to measure hand size, consisting of a size bar with engraved numbers and a string of rings of different sizes. The measurement method is to wear a suitable ring on the finger, then remove the ring and put it on the ring rod, and compare the values.
