Velocity is typically measured in meters per second (m/s) in the International System of Units (SI). This unit represents the rate of change of position of an object per unit of time, specifically the displacement traveled per second. However, depending on the context and specific application, velocity can also be measured in other units such as kilometers per hour (km/h), miles per hour (mph), feet per second (ft/s), or even in terms of the speed of light (c) for certain scientific or relativistic calculations.