Convert kilometer/hour to mile/second
Please provide values below to convert kilometer/hour [km/h] to mile/second [mi/s], or Convert mile/second to kilometer/hour.
How to Convert Kilometer/hour to Mile/second
1 km/h = 0.000172603108968623 mi/s
Example: convert 15 km/h to mi/s:
15 km/h = 15 × 0.000172603108968623 mi/s = 0.00258904663452935 mi/s
Kilometer/hour to Mile/second Conversion Table
| kilometer/hour | mile/second |
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Kilometer/hour
Kilometer per hour (km/h) is a unit of speed expressing the number of kilometers traveled in one hour.
History/Origin
The km/h unit originated from the metric system, developed in France during the late 18th century, and became widely adopted for measuring speed in transportation and scientific contexts.
Current Use
Km/h is commonly used worldwide to specify vehicle speeds, speed limits, and other applications involving the measurement of speed in everyday life and transportation systems.
Mile/second
A mile per second (mi/s) is a unit of speed representing the distance of one mile traveled in one second.
History/Origin
The mile per second has been used primarily in scientific contexts, especially in astronomy and physics, to measure extremely high velocities such as those of celestial objects. Its usage has been limited due to the convenience of metric units in scientific measurement.
Current Use
Today, the mile per second is mainly used in scientific research, particularly in astrophysics and space science, to describe high-velocity phenomena like the speed of spacecraft, stars, or other celestial bodies.