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).

If you've ever been asked your height in feet (ft) and felt unsure of the answer, you're not alone. Most of us in school are used to measuring everything in centimetres (cm). But when it comes to ...

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 weight is measured in ...