Translation of pounds per inch

The following online calculator translates ancient caliber artillery of pounds into inches.

It works very simply, you enter caliber artillery weapons in pounds, and the output is the same caliber artillery guns only have in millimeters and inches.

Hopefully, this calculator will be useful for fans of this subject.

Translation caliber vintage artillery guns from pounds in inches
 Caliber, inches:
 Caliber, millimeters: