Convert knot to Mach (SI standard)
Please provide values below to convert knot [kt] to Mach (SI standard) [M (SI)], or Convert Mach (SI standard) to knot.
How to Convert Knot to Mach (Si Standard)
1 kt = 0.00174269798238482 M (SI)
Example: convert 15 kt to M (SI):
15 kt = 15 × 0.00174269798238482 M (SI) = 0.0261404697357724 M (SI)
Knot to Mach (Si Standard) Conversion Table
| knot | Mach (SI standard) |
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Knot
A knot is a unit of speed equal to one nautical mile per hour, commonly used in maritime and aviation contexts.
History/Origin
The knot originated from the practice of measuring a ship's speed using a device called a chip log, which involved counting the number of knots that passed through a sailor's hands over a specific time interval. It became standardized as a unit of speed in maritime navigation.
Current Use
Today, the knot is primarily used in maritime and aviation industries to express the speed of ships and aircraft, providing a consistent measurement across international waters and airspace.
Mach (Si Standard)
The Mach number is a dimensionless unit representing the ratio of an object's speed to the speed of sound in the surrounding medium.
History/Origin
Named after the Austrian physicist Ernst Mach, the Mach number was introduced in the early 20th century to describe supersonic and hypersonic speeds, initially used in aerodynamics and fluid dynamics research.
Current Use
The Mach number is widely used in aeronautics and astronautics to specify aircraft and spacecraft speeds relative to the local speed of sound, especially in high-speed flight regimes.