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).

Metric units are universally followed in most countries. The metric system was first introduced in France in 1799 and since then has been further refined and has become an international decimalised ...

Scientists have approved the introduction of four new prefixes that can be applied to units of measurement in the metric system. When you purchase through links on our site, we may earn an affiliate ...