What is knot?

A knot is a unit of speed equal to one nautical mile per hour, approximately 1.852 km/h. It is the international standard for maritime navigation, aviation, and meteorological wind speed reporting.

What is kilometre per second?

Kilometre per second is a unit of speed equal to 1,000 metres per second. It is used in astrophysics, rocket propulsion, and the measurement of planetary and cosmic velocities.

Worked examples

1 knot = 0.00051444 kilometre per second

1 kilometre per second = 1,000 metre per second

More Speed conversions

• Convert knot to metre per second
• Convert knot to kilometre per hour
• Convert knot to mile per hour
• Convert knot to foot per second
• Convert knot to metre per minute
• Convert knot to kilometre per second
• Convert knot to mach (approx at sea level)
• Convert knot to centimetre per second
• Convert knot to mile per minute

Assumption: Mach uses an approximate sea-level reference (about 340.29 m/s).