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 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 ...

Units from the metric system can be used to describe the mass, volume or length of an object. Mass is measured in grams (g) and kilograms (kg). Volume is measured in millilitres (ml) and litres (l).

In the United States, metric is technically the preferred system, as established by the ... especially for distances, heights, and weights in daily life. For example, road signs in the UK display ...

All countries use the metric system to varying degrees. Most of the world has adopted the metric system as their official system of measurement with one major exception: the United States.

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.