The metric unit for length is the meter (m). It is the base unit of length in the International System of Units (SI).
The meter is defined as the distance that light travels in a vacuum in 1/299,792,458 seconds. This definition highlights the precision with which the meter is defined, making it a reliable measurement for various applications, from scientific research to everyday use.
In addition to the meter, there are smaller and larger units of length in the metric system, such as the centimeter (cm), which is 1/100 of a meter, and the kilometer (km), which equals 1,000 meters. The metric system is widely used around the world because of its simplicity and ease of conversion between units.