Convert Kilometer/Second (km/s) to Yard/Second (yd/s) instantly.
About these units
Kilometer/Second (km/s)
A kilometer per second represents a very high speed—1,000 meters every second—and is particularly important in astronomy, planetary science, and astrophysics. Orbital velocities around planets, escape velocities, solar winds, and the motion of stars relative to each other are commonly measured in km/s. This scale captures speeds far beyond terrestrial transportation. For example, Earth orbits the Sun at roughly 30 km/s, and meteoroids entering Earth's atmosphere may arrive at speeds between 11 and 72 km/s. km/s is a natural step up from m/s when describing the motion of celestial bodies.
Yard/Second (yd/s)
A yard per second is a moderately fast speed, equal to 3 ft/s or 0.9144 m/s, used in some athletic contexts—particularly American football or sprinting analysis. It provides an intuitive measure for sports where yard-based distances dominate. Because the unit aligns with common field dimensions, it simplifies performance evaluation in training and gameplay. The yard per second reflects the enduring influence of imperial measurements in American athletics.