Convert between Mach (SI standard) and other Speed units.
Mach: The SI Standard Unit of Speed
Mach is a dimensionless unit used to represent speed in relation to the speed of sound in a given medium, primarily air. It is named after the Austrian physicist Ernst Mach, who contributed significantly to the study of supersonic motion. The Mach number is defined as the ratio of the speed of an object to the speed of sound in the surrounding medium. For instance, a Mach number of 1 indicates that an object is traveling at the speed of sound.
In air at sea level and at a temperature of 20 degrees Celsius, the speed of sound is approximately 343 meters per second. As a result, Mach 2 means an object is traveling at twice the speed of sound, or about 686 meters per second. The concept of Mach is crucial in fields such as aerodynamics and aerospace engineering, where understanding speeds at different Mach levels leads to insights into flight behavior and performance.
Mach (SI standard) to Meter/second | Mach (SI standard) to Kilometer/hour | Mach (SI standard) to Mile/hour | Mach (SI standard) to Knot | Mach (SI standard) to Foot/second |