Convert Mach (Ma) to Meters Per Second (m/s)

1 mach equals 340.29 meters per second.

Formula: m/s = Ma × 340.29

Mach to Meter Per Second Converter

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How to Convert Mach to Meter Per Second

1 mach = 340.29 meters per second

Meter Per Second = Mach × 340.29

Example: 1 Ma × 340.29 = 340.29 m/s

Reverse Conversion

To convert meters per second back to mach:

  • Remember, 1 meter per second equals 0.00293867 mach.
  • To convert 340.29 m/s to Ma, multiply 340.29 x 0.00293867, resulting in 1 Ma.

Common Mach to Meter Per Second Conversions

Mach to Meter Per Second (Part 1)
Mach Meter Per Second Actions
1 mach 340.29 meters per second
5 mach 1701.45 meters per second
10 mach 3402.9 meters per second
25 mach 8507.25 meters per second
Mach to Meter Per Second (Part 2)
Mach Meter Per Second Actions
50 mach 17014.5 meters per second
100 mach 34029 meters per second
500 mach 170145 meters per second
1000 mach 340290 meters per second

Mach to meters per second Conversion Table

Reference table with common mach to meters per second conversions. All values calculated with high precision.

Mach to Meters Per Second Table
0.0001 to 12

Mach Meters per second Actions
0.0001 Ma 0.034029 m/s
0.00025 Ma 0.0850725 m/s
0.0005 Ma 0.170145 m/s
0.001 Ma 0.34029 m/s
0.0025 Ma 0.850725 m/s
0.005 Ma 1.70145 m/s
0.01 Ma 3.4029 m/s
0.025 Ma 8.50725 m/s
0.05 Ma 17.0145 m/s
0.1 Ma 34.029 m/s
14 Ma 85.0725 m/s
12 Ma 170.145 m/s

Mach to Meters Per Second Table
1 to 100000

Mach Meters per second Actions
1 Ma 340.29 m/s
2 12 Ma 850.725 m/s
5 Ma 1701.45 m/s
10 Ma 3402.9 m/s
25 Ma 8507.25 m/s
50 Ma 17014.5 m/s
100 Ma 34029 m/s
250 Ma 85072.5 m/s
500 Ma 170145 m/s
1000 Ma 340290 m/s
2500 Ma 850725 m/s
5000 Ma 1701450 m/s
10000 Ma 3402900 m/s
25000 Ma 8507250 m/s
50000 Ma 1.70145 × 107 m/s
100000 Ma 3.4029 × 107 m/s

Meters Per Second to Mach Table
0.1 to 500

Meters per second Mach Actions
0.1 m/s 0.000293867 Ma
14 m/s 0.000734667 Ma
12 m/s 0.00146933 Ma
1 m/s 0.00293867 Ma
2 12 m/s 0.00734667 Ma
5 m/s 0.0146933 Ma
10 m/s 0.0293867 Ma
25 m/s 0.0734667 Ma
50 m/s 0.146933 Ma
100 m/s 0.293867 Ma
250 m/s 0.734667 Ma
500 m/s 1.46933 Ma

Meters Per Second to Mach Table
1000 to 1 × 108

Meters per second Mach Actions
1000 m/s 2.93867 Ma
2500 m/s 7.34667 Ma
5000 m/s 14.6933 Ma
10000 m/s 29.3867 Ma
25000 m/s 73.4667 Ma
50000 m/s 146.933 Ma
100000 m/s 293.867 Ma
250000 m/s 734.667 Ma
500000 m/s 1469.33 Ma
1000000 m/s 2938.67 Ma
2500000 m/s 7346.67 Ma
5000000 m/s 14693.3 Ma
10000000 m/s 29386.7 Ma
2.5 × 107 m/s 73466.7 Ma
5 × 107 m/s 146933 Ma
1 × 108 m/s 293867 Ma

Definition of Mach

Mach: A Unit of Measurement for Speed

The Mach number, often abbreviated as "Mach," is a dimensionless quantity that represents the ratio of the speed of an object to the speed of sound in the surrounding medium. Named after Austrian physicist Ernst Mach (1838-1916), who pioneered the study of shock waves and supersonic motion.

The Mach number (M) is defined as: M = V / a, where V is the object's speed and a is the local speed of sound. At sea level and 15°C, the speed of sound is approximately 1,225 km/h (761 mph or 661 knots).

Speed Regimes

  • Subsonic: Below Mach 0.8 - Most general aviation and older commercial aircraft
  • Transonic: Mach 0.8 to 1.2 - Where shock waves first form; modern jets cruise here
  • Supersonic: Mach 1.2 to 5.0 - Military fighters, Concorde (Mach 2.04)
  • Hypersonic: Above Mach 5.0 - Space vehicles, experimental aircraft

Commercial Aircraft Cruise Speeds

Modern commercial jets typically cruise in the high transonic regime to maximize fuel efficiency:

  • Boeing 737: Mach 0.78 (~840 km/h)
  • Airbus A320: Mach 0.78 (~840 km/h)
  • Boeing 777: Mach 0.84 (~905 km/h)
  • Boeing 787: Mach 0.85 (~915 km/h)
  • Airbus A350: Mach 0.85 (~915 km/h)

The common cruise speed of Mach 0.85 (approximately 1,041 km/h at cruise altitude) represents the optimal balance between speed and fuel efficiency for modern airliners.

Historic and Notable Mach Numbers

  • Chuck Yeager (1947): First manned supersonic flight at Mach 1.06
  • Concorde: Mach 2.04 (~2,180 km/h) - Fastest commercial airliner
  • SR-71 Blackbird: Mach 3.2+ (~3,540 km/h) - Fastest manned air-breathing aircraft
  • X-15: Mach 6.7 (~7,274 km/h) - Fastest manned aircraft ever
  • Space Shuttle reentry: ~Mach 25 (~30,000 km/h)

Why Speed of Sound Varies with Altitude

The speed of sound depends on air temperature, not pressure. At cruise altitude (35,000 ft), where temperature is about -57°C, the speed of sound drops to approximately 1,062 km/h. This is why an aircraft flying at Mach 0.85 at altitude is actually traveling slower in km/h than Mach 0.85 at sea level.

Conversions to Other Units of Measurement

At sea level (15°C), Mach 1 equals approximately:

  1. Kilometers per Hour: 1,225 km/h
  2. Miles per Hour: 761 mph
  3. Knots: 661 kts
  4. Meters per Second: 340.3 m/s
  5. Feet per Second: 1,116 ft/s

About the Mach

Facts & Uses

  • Mach number is a ratio, not a fixed speed: M = v / c, where c is the local speed of sound. Mach 1 ≈ 343 m/s in dry air at 20 °C, but varies with temperature and altitude.
  • Standard in aviation for high-speed aircraft: Mach 0.8-0.85 commercial jet cruise, Mach 1.0-2.5 supersonic fighters, Mach 5+ hypersonic.
  • Used in aerodynamics, wind tunnel testing, missile design, and space reentry calculations.
  • Named after Ernst Mach (1838-1916), the Austrian physicist who studied shock waves and is honored as the first to systematically describe supersonic phenomena.

Curiosities

  • The speed of sound decreases with altitude (cold air = slower sound) — at 11 km altitude, Mach 1 is only about 295 m/s vs 343 m/s at sea level.
  • The SR-71 Blackbird cruised at Mach 3.2-3.3 — for decades the fastest air-breathing aircraft ever built, and never shot down despite over 4000 missile firings.
  • The NASA X-43 scramjet reached Mach 9.6 (≈ 11,265 km/h) in 2004 — the current air-breathing speed record. SpaceX's Starship reentry hits Mach 25+.
  • Approximate equivalents: Mach 1 (sea level, 20 °C) ≈ 343 m/s ≈ 1235 km/h ≈ 767 mph.

Sources

About the Meter Per Second

Facts & Uses

  • SI derived unit of speed: 1 m/s = the speed at which an object travels 1 meter in 1 second. The base reference for all velocity calculations.
  • Standard in physics, engineering, biomechanics (gait analysis), and fluid dynamics (flow velocities).
  • Used in wind speed measurement (meteorology), seismic wave velocity, and projectile motion equations.
  • Reference: walking pace ≈ 1.4 m/s, running 3-5 m/s, sprinting 10-12 m/s, highway driving ≈ 30 m/s.

Curiosities

  • The speed of sound in dry air at 20 °C is approximately 343 m/s — the foundation of Mach number calculations.
  • The speed of light in vacuum is exactly 299,792,458 m/s — a defining constant since 1983, used to define the meter itself.
  • Usain Bolt's 100 m world record (9.58 s) corresponds to an average 10.44 m/s, with peak speeds around 12.4 m/s in the middle of the race.
  • Approximate equivalents: 1 m/s = 3.6 km/h ≈ 2.237 mph ≈ 1.944 knots ≈ 3.281 ft/s.

Sources

Frequently Asked Questions

How many meters per second are in one mach?

One mach equals 340.29 meters per second. To convert, multiply the mach value by 340.29. For the reverse, divide the meter per second value by 340.29 (or multiply by 0.00293867).

What is <span class="fraction"><span class="top">1</span><span class="bottom">5</span></span> mach in meters per second?

15 mach = 68.058 meters per second. This is one of the most commonly searched conversions for this pair.

How precise is the mach-to-meter per second conversion?

The factor 340.29 is accurate to 6 significant figures, derived from international measurement standards. Our calculator uses full precision internally.

Looking for the reverse? Convert Meter Per Second to Mach

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Conversion factors verified against NIST, BIPM, ISO 80000-3 Derived from SI base units (m/s, BIPM). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.