Kilometers per Second to Mach Converter

How to convert kilometers per second to Mach

FormulaMa = km/s × 2.938669958

Because one Mach equals 0.34029 kilometers per second, you can also divide: Ma = km/s ÷ 0.34029.

A kilometer per second is larger than a Mach: one kilometer per second contains 2.938669958 Mach.

Worked examples

1 kilometer per second1 km/s × 2.938669958 = 2.938669958 Ma
5 kilometers per second5 km/s × 2.938669958 = 14.69334979 Ma
10 kilometers per second10 km/s × 2.938669958 = 29.38669958 Ma
20 kilometers per second20 km/s × 2.938669958 = 58.77339916 Ma
100 kilometers per second100 km/s × 2.938669958 = 293.8669958 Ma

Kilometers per second to Mach conversion table

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

Kilometers per second to Mach: 0.1–10 km/s
Kilometers per second (km/s)	Mach (Ma)
0.1 km/s	0.293867 Ma
0.25 km/s	0.73466749 Ma
0.5 km/s	1.469335 Ma
1 km/s	2.93867 Ma
2 km/s	5.8773399 Ma
3 km/s	8.8160099 Ma
4 km/s	11.75468 Ma
5 km/s	14.69335 Ma
6 km/s	17.63202 Ma
7 km/s	20.57069 Ma
8 km/s	23.50936 Ma
9 km/s	26.44803 Ma
10 km/s	29.3867 Ma

Kilometers per second to Mach: 12–1,000 km/s
Kilometers per second (km/s)	Mach (Ma)
12 km/s	35.264039 Ma
15 km/s	44.080049 Ma
20 km/s	58.773399 Ma
25 km/s	73.466749 Ma
30 km/s	88.160099 Ma
40 km/s	117.5468 Ma
50 km/s	146.9335 Ma
75 km/s	220.40025 Ma
100 km/s	293.867 Ma
250 km/s	734.66749 Ma
500 km/s	1,469.335 Ma
1,000 km/s	2,938.67 Ma

About the units

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).

Mach (Ma)

The speed of sound depends on air temperature. This converter uses the International Standard Atmosphere value at sea level, 15 °C: about 340.29 m/s (1,225 km/h, 761 mph). Mach depends on air temperature; this uses the ISA sea-level speed of sound, 340.29 m/s (15 °C).

Frequently asked questions

How many Mach are in one kilometer per second?

There are 2.938669958 Mach in one kilometer per second.

How do I convert kilometers per second to Mach?

Multiply the number of kilometers per second by 2.938669958. For example, 10 km/s × 2.938669958 = 29.38669958 Ma.

How many kilometers per second are in one Mach?

One Mach equals 0.34029 kilometers per second. That is the reverse factor, 1 ÷ 2.938669958.

What is 10 kilometers per second in Mach?

10 km/s = 29.38669958 Ma.

Is this km/s to Ma converter accurate?

The conversion uses the accepted reference value (Mach depends on air temperature; this uses the ISA sea-level speed of sound, 340.29 m/s (15 °C).). Results are shown to 12 significant figures by default; adjust precision in the converter.