Meters per Second to Kilometers per Second

How to convert meters per second to kilometers per second

Formulakm/s = m/s × 0.001

Multiply the value in meters per second by 0.001. To go the other way, multiply by 1,000 (or divide by 0.001).

A meter per second is smaller than a kilometer per second: it takes 1,000 meters per second to make one kilometer per second.

Worked examples

1 meter per second1 m/s × 0.001 = 0.001 km/s
5 meters per second5 m/s × 0.001 = 0.005 km/s
10 meters per second10 m/s × 0.001 = 0.01 km/s
20 meters per second20 m/s × 0.001 = 0.02 km/s
100 meters per second100 m/s × 0.001 = 0.1 km/s

Meters per second to kilometers per second conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

Meters per second to kilometers per second: 0.1–10 m/s
Meters per second (m/s)	Kilometers per second (km/s)
0.1 m/s	0.0001 km/s
0.25 m/s	0.00025 km/s
0.5 m/s	0.0005 km/s
1 m/s	0.001 km/s
2 m/s	0.002 km/s
3 m/s	0.003 km/s
4 m/s	0.004 km/s
5 m/s	0.005 km/s
6 m/s	0.006 km/s
7 m/s	0.007 km/s
8 m/s	0.008 km/s
9 m/s	0.009 km/s
10 m/s	0.01 km/s

Meters per second to kilometers per second: 12–1,000 m/s
Meters per second (m/s)	Kilometers per second (km/s)
12 m/s	0.012 km/s
15 m/s	0.015 km/s
20 m/s	0.02 km/s
25 m/s	0.025 km/s
30 m/s	0.03 km/s
40 m/s	0.04 km/s
50 m/s	0.05 km/s
75 m/s	0.075 km/s
100 m/s	0.1 km/s
250 m/s	0.25 km/s
500 m/s	0.5 km/s
1,000 m/s	1 km/s

About the units

Meter per second (m/s)

The SI unit of speed. A brisk walk is about 1.5 m/s; Usain Bolt’s peak speed was about 12.4 m/s.

Kilometer per second (km/s)

The kilometer per second (km/s) is a unit of speed in the International System of Units (SI). One kilometer per second equals 1,000 meters per second (m/s).

Frequently asked questions

How many kilometers per second are in one meter per second?

There are 0.001 kilometers per second in one meter per second, and this value is exact by definition.

How do I convert meters per second to kilometers per second?

Multiply the number of meters per second by 0.001. For example, 10 m/s × 0.001 = 0.01 km/s.

How many meters per second are in one kilometer per second?

One kilometer per second equals 1,000 meters per second. That is the reverse factor, 1 ÷ 0.001.

What is 10 meters per second in kilometers per second?

10 m/s = 0.01 km/s.

Is this m/s to km/s converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.

Meters per Second to Kilometers per Second Converter