Convert Mach to Knot

One Ma equals 666.7386609 kn. This converter allows you to easily convert between Mach and Knot in real time.

Formula

Ma × 666.7386609 = kn

Example: 1 Ma = 666.7386609 kn

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.

What is Knot?

The knot is a unit of speed equal to one nautical mile (1,852 meters) per hour. It is the standard unit for maritime and aviation speed worldwide. Ship speeds, aircraft airspeeds, and wind speeds in marine forecasts are all commonly expressed in knots. The name comes from the historical practice of measuring a ship's speed by counting knots on a rope paid out over a fixed time. One knot equals approximately 0.5144 m/s.