Mach Number to Speed of Sound Converter
Enter the Mach number below to convert the speed to speed of sound.
Do you want to convert speed of sound to Mach number?
How to Convert Mach Number to Speed of Sound
Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.
To convert a Mach measurement to a speed of sound measurement, multiply the Mach number by the conversion ratio. Mach 1 is equal to 1 speed of sound, so use this simple formula to convert:
The speed in speed of sound is equal to the Mach number multiplied by 1.
Mach number and speed of sound are both units used to measure speed. Keep reading to learn more about each unit of measure.
What is Mach Number?
Mach, sometimes also referred to as a Mach number, is the ratio of the speed of an object to the speed of sound.[1]
Mach can be abbreviated as M, and is also sometimes abbreviated as Ma. For example, Mach 1 can be written as 1 M or 1 Ma.
Although Mach can be abbreviated M or Ma, the Mach number is typically expressed with the number after the unit name. For example, the expression Mach 3 is preferred rather than 3 Machs or 3 M.
The speed is classified as either subsonic, transonic, supersonic, or hypersonic depending on the Mach number.
| Speed Classification | Mach Number |
|---|---|
| Subsonic | Mach < 1.0 |
| Transonic | Mach = 1.0 |
| Supersonic | Mach > 1.0 |
| Hypersonic | Mach > 5.0 |
Learn more about Mach number.
What is the Speed of Sound?
The speed of sound is the distance a sound wave travels through an elastic medium. The speed of sound through air at 20 °C is equal to 343 meters per second,[2] or roughly 767 miles per hour.
Speed of sound can be abbreviated as sound; for example, 1 speed of sound can be written as 1 sound.
Learn more about the speed of sound.
Mach to Speed of Sound Conversion Table
| Mach Number | Speed Of Sound |
|---|---|
| Mach 0.25 | 0.25 sound |
| Mach 0.5 | 0.5 sound |
| Mach 0.75 | 0.75 sound |
| Mach 1 | 1 sound |
| Mach 1.5 | 1.5 sound |
| Mach 2 | 2 sound |
| Mach 2.5 | 2.5 sound |
| Mach 3 | 3 sound |
| Mach 3.5 | 3.5 sound |
| Mach 4 | 4 sound |
| Mach 4.5 | 4.5 sound |
| Mach 5 | 5 sound |
| Mach 5.5 | 5.5 sound |
| Mach 6 | 6 sound |
| Mach 6.5 | 6.5 sound |
| Mach 7 | 7 sound |
| Mach 7.5 | 7.5 sound |
| Mach 8 | 8 sound |
| Mach 8.5 | 8.5 sound |
| Mach 9 | 9 sound |
| Mach 9.5 | 9.5 sound |
| Mach 10 | 10 sound |
References
- NASA, Mach Number, https://www.grc.nasa.gov/WWW/BGH/mach.html
- CK-12, Speed of Sound, https://www.ck12.org/physics/speed-of-sound/lesson/Speed-of-Sound-MS-PS/
More Mach & Speed of Sound Conversions
- Mach number to knots
- Mach number to speed of light
- Mach number to miles per hour
- Mach number to feet per second
- Mach number to kilometers per second
- Mach number to kilometers per hour
- Mach number to meters per second
- Mach number to centimeters per second
- knots to speed of sound
- speed of light to speed of sound
- miles per hour to speed of sound
- feet per second to speed of sound
- kilometers per second to speed of sound
- kilometers per hour to speed of sound
- meters per second to speed of sound
- centimeters per second to speed of sound