Convert kilometer/hour to kilometer/second
Please provide values below to convert kilometer/hour [km/h] to kilometer/second [km/s], or Convert kilometer/second to kilometer/hour.
How to Convert Kilometer/hour to Kilometer/second
1 km/h = 0.0002777777778 km/s
Example: convert 15 km/h to km/s:
15 km/h = 15 × 0.0002777777778 km/s = 0.004166666667 km/s
Kilometer/hour to Kilometer/second Conversion Table
| kilometer/hour | kilometer/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.
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.