Convert kilometer/second to Mach (20°C, 1 atm)

Please provide values below to convert kilometer/second [km/s] to Mach (20°C, 1 atm) [M], or Convert Mach (20°C, 1 atm) to kilometer/second.

1 km/s = 2.91545189504 M. To convert kilometer/second to Mach (20°C, 1 atm), multiply the value by 2.91545189504; to go the other way, divide by it (1 M = 0.343 km/s). Both units measure speed and appear in everyday as well as technical calculations, so switching between them quickly is often useful.

Quick Reference

  • 1 km/s = 2.91545189504 M
  • 1 M = 0.343 km/s
  • 10 km/s = 29.1545189504 M
  • 100 km/s = 291.545189504 M



How to Convert Kilometer/second to Mach (20°c, 1 Atm)

1 km/s = 2.91545189504373 M

Example: convert 15 km/s to M:
15 km/s = 15 × 2.91545189504373 M = 43.731778425656 M


Kilometer/second to Mach (20°c, 1 Atm) Conversion Table

kilometer/second Mach (20°C, 1 atm)
1 km/s 2.91545189504 M
2 km/s 5.83090379009 M
3 km/s 8.74635568513 M
5 km/s 14.5772594752 M
10 km/s 29.1545189504 M
20 km/s 58.3090379009 M
50 km/s 145.772594752 M
100 km/s 291.545189504 M
500 km/s 1457.72594752 M
1000 km/s 2915.45189504 M

Kilometer/second

A kilometer per second (km/s) is a unit of speed representing the distance of one kilometer traveled in one second.

History/Origin

The kilometer per second has been used in scientific contexts, particularly in astronomy and physics, to measure high velocities such as the speed of celestial objects and spacecraft. Its usage became prominent with the development of precise measurement techniques in the 20th century.

Current Use

Today, km/s is primarily used in astronomy, astrophysics, and space science to describe the velocities of stars, galaxies, and spacecraft. It is also used in scientific research involving high-speed phenomena.


Mach (20°c, 1 Atm)

Mach is a unit of speed representing the ratio of an object's speed to the speed of sound in the surrounding medium, typically at 20°C and 1 atm pressure.

History/Origin

Named after physicist Ernst Mach, the Mach number was developed in the early 20th century to describe speeds relative to the speed of sound, especially in aeronautics and fluid dynamics.

Current Use

Mach is widely used in aeronautics and astronautics to express aircraft and spacecraft speeds, particularly in high-speed flight and supersonic travel contexts.


Frequently Asked Questions

What is 1 kilometer/second in Mach (20°C, 1 atm)?

1 kilometer/second (km/s) = 2.91545189504 Mach (20°C, 1 atm) (M).

How do you convert kilometer/second to Mach (20°C, 1 atm)?

Multiply the kilometer/second value by 2.91545189504. For example, 25 km/s × 2.91545189504 = 72.8862973761 M.

What is 10 kilometer/second in Mach (20°C, 1 atm)?

10 km/s = 29.1545189504 M.

Which unit is larger, the kilometer/second or the Mach (20°C, 1 atm)?

The kilometer/second is the larger unit: 1 km/s = 2.91545189504 M.