The ring corresponding to 8 centimeters is a size 39-40 ring, but generally there is no ring of this size and it needs to be specially customized. A finger circumference of 8 centimeters is quite large, and most girls wear ring sizes 10-15, with sizes 12 and 13 being more common. Most boys wear ring sizes 17-22, with a higher number of sizes 18-20.
How to measure the size of a ring
1. Paper strip measurement method
① Prepare a small piece of paper with a width of about 0.5-0.8cm;
② Wrap the cut small piece of paper around your fingers, not too tightly;
③ Then mark the place where the paper is handed over for measurement purposes;
④ Measure the distance between two points with a ruler and refer to the ring size chart.
2. Ring inner diameter measurement method
If there are other suitable rings at home, you can place this ring on a piece of white paper, draw a circle along the inner circle with a pen, and then measure the diameter of this circle with a ruler.
3. Ring size bar measurement method
If you are afraid of inaccurate measurements, you can go to a jewelry store and ask for professional help. Generally, jewelry stores use ring size bars and rings. First, try on each ring one by one and select the most suitable one. Then, put this ring on the ring size bar and read the value.