Mach to Kilometers per Second Converter

How to convert Mach to kilometers per second

Formulakm/s = Ma × 0.34029

Multiply the value in Mach by 0.34029. To go the other way, multiply by 2.938669958 (or divide by 0.34029).

A Mach is smaller than a kilometer per second: it takes 2.938669958 Mach to make one kilometer per second.

Worked examples

1 Mach (ISA sea level)1 Ma × 0.34029 = 0.34029 km/s
5 Mach5 Ma × 0.34029 = 1.70145 km/s
10 Mach10 Ma × 0.34029 = 3.4029 km/s
20 Mach20 Ma × 0.34029 = 6.8058 km/s
100 Mach100 Ma × 0.34029 = 34.029 km/s

Mach to kilometers per second conversion table

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

Mach to kilometers per second: 0.1–10 Ma
Mach (Ma)	Kilometers per second (km/s)
0.1 Ma	0.034029 km/s
0.25 Ma	0.0850725 km/s
0.5 Ma	0.170145 km/s
1 Ma	0.34029 km/s
2 Ma	0.68058 km/s
3 Ma	1.02087 km/s
4 Ma	1.36116 km/s
5 Ma	1.70145 km/s
6 Ma	2.04174 km/s
7 Ma	2.38203 km/s
8 Ma	2.72232 km/s
9 Ma	3.06261 km/s
10 Ma	3.4029 km/s

Mach to kilometers per second: 12–1,000 Ma
Mach (Ma)	Kilometers per second (km/s)
12 Ma	4.08348 km/s
15 Ma	5.10435 km/s
20 Ma	6.8058 km/s
25 Ma	8.50725 km/s
30 Ma	10.2087 km/s
40 Ma	13.6116 km/s
50 Ma	17.0145 km/s
75 Ma	25.52175 km/s
100 Ma	34.029 km/s
250 Ma	85.0725 km/s
500 Ma	170.145 km/s
1,000 Ma	340.29 km/s

About the units

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).

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 Mach?

There are 0.34029 kilometers per second in one Mach.

How do I convert Mach to kilometers per second?

Multiply the number of Mach by 0.34029. For example, 10 Ma × 0.34029 = 3.4029 km/s.

How many Mach are in one kilometer per second?

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

What is 10 Mach in kilometers per second?

10 Ma = 3.4029 km/s.

Is this Ma to km/s 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.