Mach Number to Knots Converter
Enter the Mach number below to convert the speed to knots.
Do you want to convert knots to Mach number?
How to Convert Mach Number to Knots
To convert a Mach measurement to a knot measurement, multiply the Mach number by the conversion ratio. Mach 1 is equal to 666.738661 knots, so use this simple formula to convert:
The speed in knots is equal to the Mach number multiplied by 666.738661.
Mach number and knots 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.
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.
Mach to Knot Conversion Table
|Mach 0.25||166.68 kn|
|Mach 0.5||333.37 kn|
|Mach 0.75||500.05 kn|
|Mach 1||666.74 kn|
|Mach 1.5||1,000 kn|
|Mach 2||1,333 kn|
|Mach 2.5||1,667 kn|
|Mach 3||2,000 kn|
|Mach 3.5||2,334 kn|
|Mach 4||2,667 kn|
|Mach 4.5||3,000 kn|
|Mach 5||3,334 kn|
|Mach 5.5||3,667 kn|
|Mach 6||4,000 kn|
|Mach 6.5||4,334 kn|
|Mach 7||4,667 kn|
|Mach 7.5||5,001 kn|
|Mach 8||5,334 kn|
|Mach 8.5||5,667 kn|
|Mach 9||6,001 kn|
|Mach 9.5||6,334 kn|
|Mach 10||6,667 kn|
- NASA, Mach Number, https://www.grc.nasa.gov/WWW/BGH/mach.html
- NASA, Knots Versus Miles per Hour, https://www.grc.nasa.gov/WWW/K-12/WindTunnel/Activities/knots_vs_mph.html
More Mach & Knot Conversions
- Mach number to speed of sound
- 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
- speed of sound to knots
- speed of light to knots
- miles per hour to knots
- feet per second to knots
- kilometers per second to knots
- kilometers per hour to knots
- meters per second to knots
- centimeters per second to knots