Convert kilometer/second to millimeter/hour
Please provide values below to convert kilometer/second [km/s] to millimeter/hour [mm/h], or Convert millimeter/hour to kilometer/second.
How to Convert Kilometer/second to Millimeter/hour
1 km/s = 3599999997.12 mm/h
Example: convert 15 km/s to mm/h:
15 km/s = 15 × 3599999997.12 mm/h = 53999999956.8 mm/h
Kilometer/second to Millimeter/hour Conversion Table
| kilometer/second | millimeter/hour |
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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.
Millimeter/hour
Millimeter per hour (mm/h) is a unit of measurement that indicates the rate of rainfall or precipitation, representing how many millimeters of water fall in one hour.
History/Origin
The millimeter per hour has been used in meteorology and hydrology to quantify rainfall intensity, especially with the advent of precise rain gauges and weather measurement tools in the 20th century.
Current Use
Today, mm/h is commonly used in weather forecasting, climate studies, and hydrological assessments to measure and communicate the intensity of rainfall events.