Calculator for conversions between velocity units.
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In physics, velocity is defined as the speed and direction in which an object moves. It is a vector quantity and has both magnitude (speed) and direction. The SI unit of velocity is the meter per second (m/s). In the example above, "60 miles per hour" is a speed (a scalar quantity), whereas "north at 60 miles per hour" is a velocity (a vector quantity).

What happens when the direction or speed of a moving object changes? It is called acceleration, which is the rate of change of velocity.
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Trivia  •  Fun Facts

Do you know?
People could talk about velocity without knowing it.
You actually specify a velocity when you say, "I am driving up north at 60 miles per hour."