Convert Mile per hour to Mach

One mph equals 0.001303323615 Ma. This converter allows you to easily convert between Mile per hour and Mach in real time.

Formula

mph × 0.001303323615 = Ma

Example: 1 mph = 0.001303323615 Ma

What is Mile per hour?

The mile per hour is a unit of speed used primarily in the United States and the United Kingdom for road speed limits and vehicle speeds. US highway speed limits typically range from 55 to 75 mph, while residential areas are usually 25 to 35 mph. In sports, baseball pitching speeds (topping out around 105 mph in Major League Baseball) and golf swing speeds are expressed in mph. One mph is exactly 0.44704 m/s.

What is Mach?

The Mach number is the ratio of an object's speed to the speed of sound. Named after physicist Ernst Mach, Mach 1 equals the speed of sound, approximately 340 m/s in standard atmosphere. It is primarily used in aerospace: the Concorde cruised at Mach 2.04, and modern fighter jets are rated by their maximum Mach number. Exceeding Mach 1 produces a sonic boom. For conversion purposes, this tool uses the standard atmosphere speed of sound at sea level (15 degrees Celsius), which is 343 m/s.