#Conversion milles en kilometre heure how to#
How to Convert Mile/hour to Kilometer/hourġ5 mi/h = 15 × 1.609344 km/h = 24. Mile/hour to Kilometer/hour Conversion Table Mile/hour Le mille par heure (mph), ou mile per hour en anglais, est une unit de vitesse anglo-saxonne encore couramment utilise dans certains pays comme les tats-Unis ou le Royaume-Uni. 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. Faire soi-mme le calcul de conversion de milles par heure en kilomtres par heure. 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. Kilometer/hourĭefinition: The unit kilometers per hour (symbol: km/h) is a unit of speed expressing the number of kilometers traveled in one hour. It is also used in the Canadian rail system, though the Canadian road systems use km/h. It is most widely used in the United States, the United Kingdom, and their related territories. Il faut multiplier la valeur de la vitesse exprimée en mph par 1,609344 pour convertir celle-ci en 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.
It expresses the number of statute miles traveled over the period of one hour. So one mile per hour is equal to 1.6 kilometers per hour.Definition: The unit miles per hour (symbol: mph) is a measurement of speed in the imperial and United States customary systems. So to express the speed of one mile per hour in kilometers per hour, we just need to calculate one times 1.6, which gives us 1.6. It is equal to one, and we have miles in both the numerator and the denominator, so those two cancel.
This fraction now meets both of our conditions. Therefore, we can put 1.6 kilometers and one mile into this fraction. We do that by having miles on the denominator, so that the miles down here cancel with the miles up here, and then kilometers in the numerator, so that the new distance value is in kilometers.Īt this point, we need to recall that 1.6 kilometers is approximately equal to one mile. It has to be equal to one so that we’re not changing the value, and it has to change our units from miles to kilometers. Now, this fraction needs to meet two conditions. Miles per hour to Kilometers per hour table 1 mph, 1.61 kph 2 mph, 3.22 kph 3 mph, 4.83 kph 4 mph, 6.44 kph 5 mph, 8.05 kph 6 mph, 9.66 kph 7 mph, 11.27.
To answer this question, we’re going to take our initial value of one mile per hour and we’re going to multiply it by a fraction.
Our units of time can remain the same as they’re already in hours. To do this, we need to convert our units of distance from miles to kilometers. Nous concluons que cent quatre-vingt-dix milles par heure équivaut à trois cent cinq virgule sept sept cinq kilomètres par heure. So we’re given a speed of one mile per hour and we want to know what this will be in units of kilometers per hour. Pour convertir 190 milles par heure en kilomètres par heure on doit multiplier 190 x 1.6093439999987, puisque 1 mille par heure fait 1.6093439999987 kilomètres par heure. What value of speed in kilometers per hour is equal to a speed of one mile per hour?
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