Convert mile/hour to kilometer/second
Please provide values below to convert mile/hour [mi/h] to kilometer/second [km/s], or Convert kilometer/second to mile/hour.
How to Convert Mile/hour to Kilometer/second
1 mi/h = 0.00044704 km/s
Example: convert 15 mi/h to km/s:
15 mi/h = 15 × 0.00044704 km/s = 0.0067056 km/s
Mile/hour to Kilometer/second Conversion Table
| mile/hour | kilometer/second |
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Mile/hour
Mile per hour (mi/h) is a unit of speed representing the number of miles traveled in one hour.
History/Origin
The mile per hour has been used primarily in the United States and the United Kingdom for measuring speed, especially in transportation, since the adoption of the imperial system. Its usage dates back to the widespread use of miles as a distance measure before metric standardization.
Current Use
Today, mi/h is commonly used in the United States and some other countries to express vehicle speeds, speed limits, and other transportation-related velocities. It remains a standard unit in contexts where the imperial system is prevalent.
Kilometer/second
A kilometer per second (km/s) is a unit of speed representing the distance of one kilometer traveled in one second.
History/Origin
The kilometer per second has been used in scientific contexts, particularly in astronomy and physics, to measure high velocities such as the speed of celestial objects and spacecraft. Its usage became prominent with the development of precise measurement techniques in the 20th century.
Current Use
Today, km/s is primarily used in astronomy, astrophysics, and space science to describe the velocities of stars, galaxies, and spacecraft. It is also used in scientific research involving high-speed phenomena.