In the metric system a millimeter (mm) is a unit of measurement used to describe the physical dimensions of an object. In the international system of units (SI units) length is measured in meters (m).
One millimeter is equal to 0.001 meters (one-thousandth of a meter) or one-tenth of a centimeter.
One millimeter can be expressed as:
Engineering-related drawings and specifications and the lengths of objects are commonly measured in meters or millimeters.
Synonyms
Millimetre
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