Aside from that, it is a common measurement unit in the United States and Canada.
The inch we know today was adopted as a unit in 1930 by the British Standards Institution.
To make this calculation, we simply multiply: 25.
The mm is a metric unit, while the inch is an imperial unit.
Most countries measure fastening hardware in millimeters, the United States often measures hardware in fractions of an inch or mixed fractions for larger hardware.
You can also take the help of online tools to for conversion of centimeters into inches.