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Mach to Kilometers per Second Converter

Convert Mach to km/s and km/s to Mach instantly. Bidirectional speed converter with formula and common values.

Ma

Kilometers per Second

1.2005

km/s

3.5 Ma = 1.2005 km/s

km/s = Ma × 0.343

How to Convert Mach to Kilometers per Second

To convert Mach to kilometers per second, multiply by 0.343. Mach 1 equals 0.343 km/s at standard conditions.

Conversion Formula

  • Mach to Kilometers per Second: km/s = Ma x 0.343
  • Kilometers per Second to Mach: Ma = km/s / 0.343

Common Conversions

Makm/s
10.3430
20.6860
31.0290
3.51.2005
51.7150
103.4300
258.5750

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FAQ

What is Mach 1 in km/s?

Mach 1 equals 0.343 km/s at standard sea-level conditions.

How do I convert Mach to km/s?

Multiply by 0.343. For example, Mach 3.5 x 0.343 = 1.2005 km/s.

What Mach number is orbital velocity?

LEO velocity (7.8 km/s) is about Mach 22.7.

What is hypersonic speed?

Hypersonic is generally defined as Mach 5 or above (1.715 km/s).