Ring size standards are different in different regions, and there are three most common ring size standards: mainland size standards, Hong Kong size standards and American size standards.
1. How many mm is the ring number 11
In the US standard size 64.6mm, in the US version of the standard 11 ring is a large ring, usually worn by men.
2. How to measure your ring size
2. Make a clear mark with a pen at the intersection of the ropes.
3. After removing the rope, expand and straighten it, and measure the length between two points of the rope with a ruler.
