What is a millimeter in a meter?

The millimeter, or millimetre, is a multiple of the meter, which is the SI base unit for length. In the metric system, "milli" is the prefix for thousandths, or 10 -3. Millimeters can be abbreviated as mm; for example, 1 millimeter can be written as 1 mm. Millimeters are often represented by the smallest ticks on most metric rulers .

What does millimeter mean?

Definition: A millimeter (symbol: mm) is a unit of length in the International System of Units (SI). It is defined in terms of the meter, as 1/1000 of a meter, or the distance traveled by light in 1/299 792 458 000 of a second. History/origin: The milli- prefix is one of many metric prefixes.

Is mm a metric unit?

The mm is a metric unit, while the inch is an imperial unit. Their application also differs according to the situation and the accuracy it demands. However, both of them are usually featured on a standard ruler. Undoubtedly, the millimeter is the more precise unit as it is significantly smaller.