![]() Cette unité de mesure de la vitesse est un multiple du mètre par seconde qui fait à son tour partie du système international dunité. Kilometer/hour to Mile/hour Conversion Table Kilometer/hour Comme son nom lindique, le kilomètre par heure sert à mesurer le nombre de kilomètre parcouru en une heure. A car begins heading along a path at 50 mph. In other words, the value in mph multiply by 1.6093440006147 to get a value in km/h. It is also used in the Canadian rail system, though the Canadian road systems use km/h. 40 miles per hour mph 0.0178816 kilometers per second km/s (400.000447040) 50 miles per hour mph 0.022352 kilometers per second km/s (500.000447040). Conversion miles per hour to kilometers per hour, mph to km/h. It is most widely used in the United States, the United Kingdom, and their related territories. Conversion result: 1 mph 1.60934 km/h 1 mile per hour is 1.60934 kilometers per hour. The calculator answers the questions: 120 mph is how many km/h or change mph to km/h. One mph equals exactly 1.609344 kilometers per hour (km/h).Ĭurrent use: Along with km/h, mph is most typically used in relation to road traffic speeds. In other words, the value in mph multiply by 1.6093440006147 to get a value in km/h. It expresses the number of statute miles traveled over the period of one hour. If we want to calculate how many Kilometers per Hour are 50 Miles per Hour we have to multiply 50 by 25146 and divide the product by 15625. ![]() Mile/hourĭefinition: The unit miles per hour (symbol: mph) is a measurement of speed in the imperial and United States customary systems. There are many abbreviations for the unit kilometers per hour (kph, kmph, k.p.h, KMph., etc.), but "km/h" is the SI unit symbol. It is also common for both miles per hour as well as kilometers per hour to be displayed on car speedometers. It was not until later in the mid-late 19 th century however, that the use of kilometers per hour became more widespread the myriametre (10,000 meters) per hour was preferred for expressing speed.Ĭurrent use: Km/h is currently the most commonly used unit of speed around the world and is typically used for car speeds and road signs. According to the Oxford English Dictionary, the term kilometer first came into use in 1810. History/origin: The unit of kilometers per hour is based on the meter, which was formally defined in 1799. So what does it mean It means that if you are driving 50.1 mph to get to a destination, you would need to drive. Definition: The unit kilometers per hour (symbol: km/h) is a unit of speed expressing the number of kilometers traveled in one hour. Now you know how fast 50.1 mph is in km/h.
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