# Feet Per Second (ft/s) Conversions

The foot per second (plural feet per second) is a unit of both speed (scalar) and velocity (vector quantity, which includes direction). It expresses the distance in feet (ft) traveled or displaced, divided by the time in seconds (s). The corresponding unit in the International System of Units (SI) is the metre per second. Abbreviations include **ft/s**, fps, and the scientific notation ft s^{−1}

Average linear speed is obtained by measuring the distance in feet that an object travels in a certain number of seconds, and then dividing the distance by the time.

The foot per second is often used by lay people when talking about speed, particularly in the United States. But scientists, and most people in other parts of the world, use the meter per second (m/s), which is the standard unit of speed in the International System of Units ( SI ).