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 ...

Energy is a complex subject, loaded with many specialized terms and a confusing array of units and inconsistent abbreviations. For example, natural gas reserves and production are usually measured in ...

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 ...