1mm is about the length of the thickness of a typical ID or credit card, so it's a very small unit of length. Here are some things you might use this tiny unit to measure:
Examples of things that can be measured in millimeters include the thickness of paper, the diameter of small screws, the width of a pencil lead, and the length of small electronic components.
My fingernails grow about 10mm each year. My toenails grow at about one-half that rate. The dimensions of a book could conveniently be given in mm.
The table row height can be measured in many forms. Some of the measures are pixels, mm etc.
mm
Millimetres.
Temperature is measured in kelvin.
The diameter of the bullet casing, measured at 7.3 mm, is 7.3 millimeters.
mm
Snowboard length and widths are measured in centimeters.
In USA it is measured in inches, in. In other countries it is measured in millimetres, mm.
perfume
No, it is measured by weight in milligrams ( mg) not by mm which is volume.