A derived unit is a unit of measurement that is formed by combining one or more of the seven SI base units. Examples of derived units include the newton (N) for force, the joule (J) for energy, and the pascal (Pa) for pressure. These units are not base units themselves but are derived from them through multiplication or division. For instance, a newton is defined as kg⋅m/s2\text{kg}\cdot \text{m/s}^2kg⋅m/s2, combining mass, length, and time base units.