Knots to Kilometers per Second Converter

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


Result in Kilometers per Second:

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1 kn = 0.000514 km/s

Do you want to convert kilometers per second to knots?

How to Convert Knots to Kilometers per Second

To convert a measurement in knots to a measurement in kilometers per second, multiply the speed by the following conversion ratio: 0.000514 kilometers per second/knot.

Since one knot is equal to 0.000514 kilometers per second, you can use this simple formula to convert:

kilometers per second = knots × 0.000514

The speed in kilometers per second is equal to the speed in knots multiplied by 0.000514.

For example, here's how to convert 5,000 knots to kilometers per second using the formula above.
kilometers per second = (5,000 kn × 0.000514) = 2.572222 km/s

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

What Is a Knot?

One knot is equal to a speed of one nautical mile per hour,[1] 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.

Learn more about knots.

What Are 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 the expressions of units, the slash, or solidus (/), is used to express a change in one or more units relative to a change in one or more other units.[2] For example, km/s is expressing a change in length or distance relative to a change in time.

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

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

Learn more about kilometers per second.

Knot to Kilometer per Second Conversion Table

Table showing various knot measurements converted to kilometers per second.
Knots Kilometers Per Second
1 kn 0.000514 km/s
2 kn 0.001029 km/s
3 kn 0.001543 km/s
4 kn 0.002058 km/s
5 kn 0.002572 km/s
6 kn 0.003087 km/s
7 kn 0.003601 km/s
8 kn 0.004116 km/s
9 kn 0.00463 km/s
10 kn 0.005144 km/s
20 kn 0.010289 km/s
30 kn 0.015433 km/s
40 kn 0.020578 km/s
50 kn 0.025722 km/s
60 kn 0.030867 km/s
70 kn 0.036011 km/s
80 kn 0.041156 km/s
90 kn 0.0463 km/s
100 kn 0.051444 km/s
200 kn 0.102889 km/s
300 kn 0.154333 km/s
400 kn 0.205778 km/s
500 kn 0.257222 km/s
600 kn 0.308667 km/s
700 kn 0.360111 km/s
800 kn 0.411556 km/s
900 kn 0.463 km/s
1,000 kn 0.514444 km/s
2,000 kn 1.0289 km/s
3,000 kn 1.5433 km/s
4,000 kn 2.0578 km/s
5,000 kn 2.5722 km/s
6,000 kn 3.0867 km/s
7,000 kn 3.6011 km/s
8,000 kn 4.1156 km/s
9,000 kn 4.63 km/s
10,000 kn 5.1444 km/s


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

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