Before measuring something, it is important to know which unit to use. Estimating its approximate size by comparing it with a more familiar object can help. In order to find a suitable unit of measure ...

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).

Since June 2011, the way HbA1c values are reported has switched from a percentage to a measurement in mmols/mol. To make sense of the new units and compare these with old units and vice versa, use our ...

We see the world in units of measurement. You're this many feet tall and this many years old, and you weigh this many pounds. You have this many minutes left in your work day and your home is that ...

Electrical or electronic quantities and units are crucial values to know in evaluating and describing the behavior, characteristics and physical properties of a circuit. This quiz can help you recall ...