… Get hassle-free estimates from local home improvement professionals and find out how much your project will cost. If you spot an error on this site, we would be grateful if you could report it to us by using the contact link at the top of this page and we will endeavour to correct it as soon as possible. Please provide values below to convert kilometer/hour [km/h] to mile/hour [mi/h], or vice versa. [2], Kilometers per hour can be expressed using the formula: The kilometer per hour, or kilometre per hour, is an SI unit of speed in the metric system. The kilometre per hour (SI symbol: km/h; abbreviations: kph, kmph, km/hr) is a unit of speed, expressing the number of kilometres travelled in one hour. In formal expressions, the slash, or solidus (/), is used to separate units used to indicate division in an expression. Kilometers per hour are a measurement of speed expressing the distance traveled in kilometers in one hour. For example, 1 knot can be written as 1 kn or 1 kt. Knots and kilometers per hour are both units used to measure speed. One knot is equal to a speed of one nautical mile per hour,[1] or one minute of latitude per hour. Miles per hour This is a measurement of speed typically used in non-metric countries for transport such as the USA. Whilst every effort has been made to ensure the accuracy of the metric calculators and charts given on this site, we cannot make a guarantee or be held responsible for any errors that have been made.

For example, 1 kilometer per hour can be written as 1 km/h or 1 kph.

According to the Oxford English Dictionary, the term kilometer first came into use in 1810.

It was not until later in the mid-late 19th century however, that the use of kilometers per hour became more widespread; the myriametre (10,000 meters) per hour was preferred for expressing speed. It is most widely used in the United States, the United Kingdom, and their related territories.

Current use: Along with km/h, mph is most typically used in relation to road traffic speeds. Current use: Along with km/h, mph is most typically used in relation to road traffic speeds. ABBR =kilometres per hour → km/h, kph Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, … One mph equals exactly 1.609344 kilometers per hour (km/h). History/origin: The unit of kilometers per hour is based on the meter, which was formally defined in 1799. One knot is equal to 1.852 kilometers per hour, so use this simple formula to convert: The speed in kilometers per hour is equal to the knots multiplied by 1.852. Current 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. Keep reading to learn more about each unit of measure. ), but "km/h" is the SI unit symbol. 1 km/h = 0.6213711922 mi/h1 mi/h = 1.609344 km/h, Example: convert 15 km/h to mi/h:15 km/h = 15 × 0.6213711922 mi/h = 9.3205678836 mi/h, Kilometer/hour to Velocity Of Light In Vacuum, Kilometer/hour to Cosmic Velocity - First, Kilometer/hour to Cosmic Velocity - Second, Kilometer/hour to Cosmic Velocity - Third, Kilometer/hour to Velocity Of Sound In Pure Water, Kilometer/hour to Velocity Of Sound In Sea Water (20°C, 10 Meter Deep). One mph equals exactly 1.609344 kilometers per hour (km/h). kilometers per hour (kph, km/h, kmh-1) Destination unit: kilometers per second (kps, km/s, kms-1) Related categories: Length Time Acceleration Converter You are currently converting speed units from kilometers per hour to kilometers per second 1 kph = 0.00027777777777778 kps. The velocity in kilometers per hour is equal to the distance in kilometers divided by time in hours. It expresses the number of statute miles traveled over the period of one hour. Note: You can increase or decrease the accuracy of this answer by selecting the number of significant figures required from the options above the result. Enter the speed in knots below to get the value converted to kilometers per hour. One mph equals exactly 1.609344 kilometers per hour (km/h). There are many abbreviations for the unit kilometers per hour (kph, kmph, k.p.h, KMph., etc. Definition: The unit kilometers per hour (symbol: km/h) is a unit of speed expressing the number of kilometers traveled in one hour. Our full terms & conditions can be found by clicking here. To convert a knot measurement to a kilometer per hour measurement, multiply the speed by the conversion ratio. vkm/s = dkmthr.

Kilometers per hour can be abbreviated as km/h, and are also sometimes abbreviated as kph. For a more accurate answer please select 'decimal' from the options above the result. Kilometers per hour This is a measurement of speed typically used in countries using the metric system for transport. It is most widely used in the United States, the United Kingdom, and their related territories. Are You Planning a Home Improvement Project?

Definition: The unit miles per hour (symbol: mph) is a measurement of speed in the imperial and United States customary systems. This is a measurement of speed typically used in non-metric countries for transport such as the USA. It is most widely used in the United States, the United Kingdom, and their related territories. Current use: Along with km/h, mph is most typically used in relation to road traffic speeds.

kilometers per hour . This site is owned and maintained by Wight Hat Ltd. ©2003-2020. The United Kingdom also uses this on the roads although officially the metric system has been adopted. It is also used in the Canadian rail system, though the Canadian road systems use km/h. Knots can be abbreviated as kn, and are also sometimes abbreviated as kt. Note: Fractional results are rounded to the nearest 1/64. Note: For a pure decimal result please select 'decimal' from the options above the result. It is also common for both miles per hour as well as kilometers per hour to be displayed on car speedometers. Road speed limits are given in kilometers per hour which is abbreviated as kph or km/h. Road speed limits are given in miles per hour which is abbreviated as mph or mi/h. This is a measurement of speed typically used in countries using the metric system for transport. kilometers per second to kilometers per hour, centimeters per second to kilometers per hour. Road speed limits are given in kilometers per hour which is abbreviated as kph or km/h. NASA, Knots Versus Miles per Hour, https://www.grc.nasa.gov/WWW/K-12/WindTunnel/Activities/knots_vs_mph.html, National Institute of Standards and Technology, NIST Guide to the SI, Chapter 6: Rules and Style Conventions for Printing and Using Units, https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-6-rules-and-style-conventions-printing-and-using. Kilometers per hour can be abbreviated as km/h, and are also sometimes abbreviated as kph. Road speed limits are given in kilometers per hour which is abbreviated as kph or km/h.

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