Speed

In physics, speed refers to the magnitude of the velocity of an object.

Speed is the total distance traveled divided by the time it takes to travel it.

Note that speed is a scalar, therefore it has no direction, and because it is a measure of magnitude, it is never negative.

Like velocity, units for its measurement are meters/second (m/s), and more commonly in informal circumstances kilometers/hour (kph) or (km/h) and miles/hour (mph) or (MPH).