The metric system is used to measure the length, mass or capacity of an object. Length is measured in millimetres (mm), centimetres (cm), metres (m) or kilometres (km). Mass or ...

This metric system had as its fundamental unit of length the meter, defined to be a small fraction of the length of a meridian of the earth. Other units of length were decimal multiples or fractions ...

The metric system is used by almost every country in the world, making it a universal language of measurement. The United States officially endorsed the metric system in 1975, but implementation has ...

The metric system is used to measure the length, mass or capacity of an object. Length is measured in millimetres (mm), centimetres (cm), metres (m) or kilometres (km). Mass or ...

or among units of length, volume and weight. In other words, the French introduced not only national standards, but a system of standards. It survives today as the metric system.