National Institute of Standards and Technology, NIST Guide to the SI, https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b8, 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, Wikipedia, Miles per hour, https://en.wikipedia.org/wiki/Miles_per_hour. There are many abbreviations for the unit kilometers per hour (kph, kmph, k.p.h, KMph., etc. To convert from kilometers to miles, divide the measurement in km by 1.609344 to get the equivalent in miles. RapidTables: Kilometers to Miles Conversion. Context is very important when you're deciding which decimal place to round to. Solution: Formula: ), but "km/h" is the SI unit symbol. We are not to be held responsible for any resulting damages from proper or improper use of the service. The velocity in miles per hour is equal to the distance in miles divided by time in hours. His words were, “Multiply the number of kilometers by six and drop the last digit.” For example, if a sign indicates your destination is 350 kilometers away, multiplying by six yields 2,100. The fastest way to convert kilometers per hour to miles per hour is to use this simple formula: mph = km/h ÷ 1.609344 The speed in miles per hour is equal to the speed in kilometers per hour divided by 1.609344. End result: Then you'd have: 10 kilometers ÷ 0.6214 = 16.092693917 miles. that corresponded to different distance in different time periods and locations. 1 metre is equal to 0.001 km, or 0.00062137119223733 miles. To convert from kilometers to miles, divide the measurement in km by 1.609344 to get the equivalent in miles. The ratio is approximately 100 kilometers equals 60 miles. [2] International Organization for Standardization (1993). Unless it's against the rules of a test, it's always better to double-check a conversion factor – and be certain you're correct – than to guess. Our online calculators, converters, randomizers, and content are provided "as is", free of charge, and without any warranty or guarantee. One kilometer is therefore one thousand meters. Try it out with 3.107 miles, which from the previous problem you know is equal to 5 kilometers: There's just one problem here: How do you know if you should be dividing or multiplying by the conversion factor? You can double-check by remembering which unit is larger or smaller than the other. If you're not sure how many decimal places you must be accurate to, ask your teacher. To convert from kilometers into miles, multiply the distance in kilometers by 0.6214. This unit conversion is usualy done with the help of a calculator. Kilometers per hour are a measurement of speed expressing the distance traveled in kilometers in one hour. vmph = dmithr. Our online converter above will be of great assistance, as it is easy to use, has a quick copy button to copy the result to your clipboard for later use. km / 1.609344 = miles Both kilometers and miles are units for measuring distances and they are of comparable magnitude so using a kilometer to mile converter often makes a lot of sense. Our online converter above will be of great assistance, as it is easy to use, has a quick copy button to … In this case, the miles are rounded to one decimal point because most runners don't care about the extra 0.007 miles. If you need a more accurate number, multiply by 1.60934 instead. But it's also very common to look up conversion factors in a reference book or your notes. The velocity in kilometers per hour is equal to the distance in kilometers divided by time in hours. This follows from the definition of a mile as 5280 feet, the definition of a feet as 0.3044 meters, and the definition of a kilometer as 1,000 meters. Life didn’t used to be so easy, but now all you have to do is google something like “kilometers per light year” to find that 1 light-year is about 9.46 x 10 12 kilometers—which is a lot of kilometers—almost 10-million million of them! You'll probably need to memorize conversion factors for tests and quizzes, and any conversions you do frequently in school or in real life are likely to stick in your head. Any time you're asked to convert from one unit of length to another, all you have to do is multiply the first unit by the appropriate conversion factor. Use this page to learn how to convert between kilometres and miles. Each tool is carefully developed and rigorously tested, and our content is well-sourced, but despite our best effort it is possible they contain errors. -- math subjects like algebra and calculus. These are internationally agreed upon unit definitions that were established by a treaty signed in 1959. Lisa studied mathematics at the University of Alaska, Anchorage, and spent several years tutoring high school and university students through scary -- but fun! Mile of 5280 feet is sometimes called the statute mile or land mile to distinguish it from the nautical mile which equals 1852 meters or about 6076.1 feet. 1 km to miles = 0.62137 miles. kilometers per hour to kilometers per second, kilometers per hour to centimeters per second, convert miles per hour to kilometers per hour. That gives you: This time your result (in miles) is a smaller number than the kilometers you started with, which means you chose the right operation for your conversion. Well, you’re in luck because Google can help with that. If you have reason to convert kilometers to miles, you'll probably need to do conversions in the other direction, too: going from miles to kilometers. https://www.gigacalculator.com/converters/convert-kilometers-to-miles.php. 10 km / 1.6093 = 6.213712 miles People are giving you some very precise answers and that’s great. Calculation: ISO Standards Handbook: Quantities and units (3rd edition). It expresses the number of statute miles traveled over the period of one hour. Either way, it can be confusing. History/origin: The prefix kilo- is a metric prefix indicating one thousand. Miles per hour can be expressed using the formula: In this case miles are longer than kilometers, so if you convert from miles to kilometers, you should end up with a bigger number. [2], Kilometers per hour can be expressed using the formula: If you live in the United States, the United Kingdom or their territories, you're in one of the only countries that still uses miles as the standard measure for speed and distance. The difference between them is that the mile is a part of the imperial unit system, used in several countries like the United States and the United Kingdom, while the kilometer is a unit from the metric system. Mile/hour. Definition: The unit miles per hour (symbol: mph) is a measurement of speed in the imperial and United States customary systems. You already know how many kilometers you're being asked to convert, and you know the conversion factor; so all you have to do is fill them into the conversion formula: Once you do the multiplication, you'll have your answer: If you've ever run or walked in a mid-distance race, this is probably a familiar number; 5k or 3.1 miles is a very popular race distance. Miles per hour can be abbreviated as mph, and are also sometimes abbreviated as mi/h or MPH. Definition: A kilometer (symbol: km) is a unit of length in the International System of Units (SI). Mile is a unit of length that equals 5280 feet, 1760 yards, or about 1609 meters. Use this kilometers to miles converter to easily convert between Kilometers and Miles (km to miles). While the kilometer is a modern unit, the mile has a long history, dating back at least far as the Romans. Kilometers per hour and miles per hour are both units used to measure speed. Since one kilometer per hour is equal to 1.609344 miles per hour,[1] that's the conversion ratio used in the formula. So, if you need to find the approximate number of kilometers in 10 miles, just multiply 10 by 1.6 to find that 10 miles is 1.6 * 10 ≈ 16 kilometers. The kilometer per hour, or kilometre per hour, is an SI unit of speed in the metric system. It's a really quick way of converting Km To Miles The simplest way to do this is to perform the inverse of the operation you used to go from kilometers to miles. ISBN 92-67-10185-4. Geneva: ISO. Kilometer. Are You Planning a Home Improvement Project? So if you multiplied by 0.6214 to convert from kilometers to miles, you'll divide by 0.6214 to convert from miles to kilometers. Note that rounding errors may occur, so always check the results. The simplest way to do this is to perform the inverse of the operation you used to go from kilometers to miles. Miles per hour are a measurement of speed expressing the distance traveled in miles in one hour.[3]. Convert Km To Miles - Easy Distance Converter To get started simply enter the distance of Kilometre or Miles into the correct box above and it will instantly convert it for you into the other box. There are 1.609344 kilometers in a mile. If you go the other way, from kilometers to miles, you should end up with a smaller number. It's also a vital skill if you work in a science field where the metric system predominates, or if you participate in footraces, cycling races or competitive rowing, all sports in which distances are usually given in kilometers. For example, here's how to convert 5 kilometers per hour to miles per hour using the formula above. So, if you're being asked to convert km to miles, you'd do this multiplication: The conversion factor for converting kilometers to miles is 0.62137119, but for most purposes, being accurate to four decimal places is enough – so usually you'll use 0.6214 as your conversion factor. How to Use Google to Convert Units. ›› Quick conversion chart of km to miles. vkm/s = dkmthr. If you've double-checked your conversion factor and are sure you got it right, that means you should be multiplying instead. Copyright 2020 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. The Roman mile was 5,000 long, and there were other miles like the English mile, Irish mile, Italian mile, etc.

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