Convert Kilometer per Second to Knot (km/s to Knot)

Kilometer per Second (km/s) and Knot (Knot) are both units of speed. With the conversion form below, you can effortlessly and accurately convert kilometer per second to knot. This free online calculator tool makes it simple and easy to perform the conversion from km/s unit to the Knot unit.

Speed is the scalar measure of how fast an object moves—the distance covered per unit time. The SI unit is metre per second (m/s). Other common units include kilometres per hour (km/h), used on road signs across most of the world, and miles per hour (mph), used in the United States and United Kingdom. In aviation and maritime contexts, speed is measured in knots (nautical miles per hour). The speed of light in a vacuum, c ≈ 299,792,458 m/s, is the ultimate speed limit in the universe.

A kilometer per second (Kilometer/second, km/s, km/sec) measures speed as the distance of one kilometer covered in one second. Orbital velocity and escape velocity calculations, along with interplanetary spacecraft speeds, use kilometers per second. Seismic wave speeds in earthquake research also use kilometers per second. The unit is appropriate for cosmic-scale speeds where smaller units produce impractical numbers. Learn more about kilometer per second.

A knot is a unit of speed equal to one nautical mile per hour. Maritime navigation, aviation, and oceanography use knots as the standard speed measurement. Ship speedometers display knots. Aircraft airspeed is measured in knots. Wind speeds at sea are expressed in knots. The knot developed from nautical traditions and remains internationally standardized for water and air navigation because the nautical mile relates directly to Earth's circumference and latitude/longitude systems. Learn more about knot.