Kilometers Per Second to Knots Conversion

Enter the speed in kilometers per second below to get the value converted to knots.

Results in Knots:
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1 km/s = 1,943.844492 kn

How to Convert Kilometers Per Second to Knots

Speedometers are used in vehicles to measure speed

To convert a kilometer per second measurement to a knot measurement, multiply the speed by the conversion ratio.

Since one kilometer per second is equal to 1,943.844492 knots, you can use this simple formula to convert:

knots = kilometers per second × 1,943.844492

The speed in knots is equal to the kilometers per second multiplied by 1,943.844492.

For example, here's how to convert 5 kilometers per second to knots using the formula above.
5 km/s = (5 × 1,943.844492) = 9,719.222462 kn

Kilometers per second and knots are both units used to measure speed. Keep reading to learn more about each unit of measure.

Kilometers Per Second

Kilometers per second are a measurement of speed expressing the distance traveled in kilometers in one second.

The kilometer per second, or kilometre per second, is an SI unit of speed in the metric system. Kilometers per second can be abbreviated as km/s, and are also sometimes abbreviated as km/sec. For example, 1 kilometer per second can be written as 1 km/s or 1 km/sec.

In formal expressions, the slash, or solidus (/), is used to separate units used to indicate division in an expression.[1]

Kilometers per second can be expressed using the formula:
vkm/s = dkmtsec

The velocity in kilometers per second is equal to the distance in kilometers divided by time in seconds.


One knot is equal to a speed of one nautical mile per hour,[2] or one minute of latitude per hour.

Knots can be abbreviated as kn, and are also sometimes abbreviated as kt. For example, 1 knot can be written as 1 kn or 1 kt.

Kilometer Per Second to Knot Conversion Table

Kilometer per second measurements converted to knots
Kilometers Per Second Knots
0.001 km/s 1.9438 kn
0.002 km/s 3.8877 kn
0.003 km/s 5.8315 kn
0.004 km/s 7.7754 kn
0.005 km/s 9.7192 kn
0.006 km/s 11.66 kn
0.007 km/s 13.61 kn
0.008 km/s 15.55 kn
0.009 km/s 17.49 kn
0.01 km/s 19.44 kn
0.02 km/s 38.88 kn
0.03 km/s 58.32 kn
0.04 km/s 77.75 kn
0.05 km/s 97.19 kn
0.06 km/s 116.63 kn
0.07 km/s 136.07 kn
0.08 km/s 155.51 kn
0.09 km/s 174.95 kn
0.1 km/s 194.38 kn
0.2 km/s 388.77 kn
0.3 km/s 583.15 kn
0.4 km/s 777.54 kn
0.5 km/s 971.92 kn
0.6 km/s 1,166 kn
0.7 km/s 1,361 kn
0.8 km/s 1,555 kn
0.9 km/s 1,749 kn
1 km/s 1,944 kn


  1. National Institute of Standards and Technology, NIST Guide to the SI, Chapter 6: Rules and Style Conventions for Printing and Using Units,
  2. NASA, Knots Versus Miles per Hour,