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Convert Millimeters Per Second to Kilometers Per Hour (mm/s to kph) ▶ Conversion Table
How to convert1 kilometer per hour (kph) = 277.7777778 millimeter per second (mm/s). Kilometer Per Hour (kph) is a unit of Speed used in Metric system. Millimeter Per Second (mm/s) is a unit of Speed used in Metric system. Kilometers Per HourDefinition of Kilometers Per HourKilometers per hour (km/h) is a unit of speed that measures how fast something is moving in terms of kilometers per unit of time. It is commonly used in most countries around the world, except for the United States and some other countries that use the US Standard system of measurement. The speed limit signs on roads and highways are usually expressed in km/h. One kilometer per hour is equal to 0.27777777777778 meters per second, or 3.6 meters per minute. It can also be converted to other units of speed, such as miles per hour, feet per second, or knots, by using appropriate conversion factors. How to Convert Kilometers Per HourTo convert kilometers per hour to other units of speed, we need to multiply or divide by the corresponding conversion factors. For example, to convert kilometers per hour to miles per hour, we need to multiply by 0.6213711922, since there are 0.6213711922 miles in one kilometer. To convert kilometers per hour to meters per second, we need to divide by 3.6, since there are 3.6 seconds in one minute. Here are some examples of how to convert kilometers per hour to other units of length in the US Standard system and the SI system:
Where Kilometers Per Hour Are UsedKilometers per hour are mainly used in most countries around the world that use the SI system of measurement or the metric system. They are often used for car speeds and road signs, as well as for trains, planes, boats, and bicycles. For example, a car may have a speed of 100 km/h, which means that it travels a distance of 100 kilometers in one hour. A road sign may indicate a speed limit of 80 km/h, which means that drivers should not exceed this speed on that road section. A train may have a speed of 300 km/h, which means that it covers a distance of 300 kilometers in one hour. Kilometers per hour are also used in some other fields, such as sports, weather, and astronomy, where the speed or velocity of an object or phenomenon is measured in kilometers per unit of time. History of Kilometers Per HourThe origin of kilometers per hour as a unit of speed can be traced back to the development of the metric system and the kilometer as a unit of length in the late eighteenth century. The kilometer was defined as one ten-thousandth of the distance from the equator to the North Pole along a meridian through Paris. The term kilometer first appeared in English in 1810, but it was not until later in the mid-nineteenth century that the use of kilometers per hour became more widespread; before that, other units such as miles per hour or leagues per hour were preferred for expressing speed. Kilometers per hour have been used ever since as a standard unit of speed for most countries around the world that use the SI system or the metric system. They have also been adopted by some international organizations and conventions, such as the International Civil Aviation Organization and the International System of Units. Example Conversions of Kilometers Per Hour to Other UnitsHere are some examples of how to convert kilometers per hour to other units of speed, using the conversion factors given above:
How to convert millimeters per secondMillimeters per second can be converted to other units of speed or velocity by using simple conversion factors. Here are some common units and their conversion factors:
Where millimeters per second are usedMillimeters per second are mainly used in microbiology and nanotechnology to measure the speed or velocity of microscopic organisms and processes. For example, the average speed of a bacterium such as Escherichia coli is about 10-20 micrometers per second, which is equivalent to 0.01-0.02 mm/s. The average speed of a virus such as influenza A virus is about 1 micrometer per second, which is equivalent to 0.001 mm/s. The average speed of a nanorobot such as a DNA origami walker is about 4 nanometers per second, which is equivalent to 0.000004 mm/s. Definition of millimeters per secondAccording to the SI definition, one millimeter per second is the speed of a body that covers a distance of one millimeter in a time of one second. Mathematically, it can be expressed as:
where v is the speed or velocity in millimeters per second, s is the distance traveled in millimeters, and t is the time taken in seconds. History of millimeters per secondThe concept of speed or velocity has been studied since ancient times by philosophers and scientists such as Aristotle, Galileo, Newton, etc. The millimeter was originally derived from the meter in the late 18th century as one thousandth of a meter. The second was originally defined in terms of the Earth’s rotation as one eighty-six thousand four hundredth of a mean solar day. The combination of these two units resulted in the millimeter per second as a unit of speed or velocity. The millimeter per second was officially adopted as part of the SI system in 1960. Example conversions of millimeters per second to other unitsHere are some examples of converting millimeters per second to other units of speed or velocity:
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Kilometers Per Hour to Centimeters Per Second Kilometers Per Hour to Feet Per Second Kilometers Per Hour to Kilometers Per Day Kilometers Per Hour to Kilometers Per Second Kilometers Per Hour to Knots Kilometers Per Hour to Light Speed Kilometers Per Hour to Meters Per Minute Kilometers Per Hour to Mach Kilometers Per Hour to Miles Per Day Kilometers Per Hour to Miles Per Minute Kilometers Per Hour to Miles Per Second Kilometers Per Hour to Miles Per Hour Kilometers Per Hour to Meters Per Second Millimeters Per Second to Centimeters Per Second Kilometers Per Second to Kilometers Per Hour Knots to Kilometers Per Hour Knots to Miles Per Hour Kilometers Per Hour to Kilometers Per Second Kilometers Per Hour to Knots Kilometers Per Hour to Light Speed Kilometers Per Hour to Mach Kilometers Per Hour to Miles Per Second Kilometers Per Hour to Miles Per Hour Kilometers Per Hour to Meters Per Second Light Speed to Kilometers Per Hour Light Speed to Miles Per Hour Mach to Kilometers Per Hour Mach to Miles Per Second Mach to Miles Per Hour Miles Per Second to Kilometers Per Hour Miles Per Second to Mach Miles Per Hour to Knots Miles Per Hour to Kilometers Per Hour Miles Per Hour to Light Speed Miles Per Hour to Mach Miles Per Hour to Meters Per Second Meters Per Second to Kilometers Per Hour Meters Per Second to Miles Per Hour |
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