The definition of a mile as 5, feet or 8 furlongs , sometimes referred to as the statute mile, international mile, or land mile, which differs from the Roman mile of 5, feet, developed due to the importance of the furlong in England, back in There also exist a number of units based on, or closely related to, the Roman mile, including the nautical mile 1. Current use: Although most countries have adopted the metric system and use kilometers, rather than miles, to express land distance, the mile is still prevalently used in countries such as the United States US , United Kingdom UK , Myanmar, and Liberia, as well as some other countries which are either US or UK territories, or have historical ties with either country.
From: kilometer To: mile. Motion Acceleration Running Speed Wind speed. Radioactivity Absorbed dose Equivalent dose Radioactive decay. Time Pregnancy calendar Time Time zones. Settings Decimals 0 1 2 3 4 5 6 7 8 9 Comma separator Comma "," Dot ". Article Summary. Method 1. Master the formula for converting kilometers to miles. Thus, to convert kilometers to miles, simply multiply the number of kilometers by 0.
People are often interested in this conversion because they want to know how many miles are in a 5K run. The formula is 5 X 0. You could also divide the number of kilometers by the number of kilometers per mile, which is the above-mentioned 1. For example, 5 kilometers divided by 1. Convert kilometers to nautical miles.
Regular miles are a land-based unit of measurement. However, perhaps you want to know the conversion for nautical miles instead. Nautical miles are based on the earth's circumference and is used for air and sea travel. Method 2. Use a conversion chart or online calculator. The charts list the number of kilometers alongside the equivalent miles.
The calculators allow you to plug in the number of kilometers to get the number of miles. However, 11 miles is equal to If you know how to use Microsoft Excel , you could also use an Excel formula to do the conversion. In the formula, "y" is the original unit of measurement, "x" is the quantity of that unit, and "z" is the unit of measurement you want to convert to.
Method 3. Use an old trick to do the calculation. There is a way you can do the calculation in your head. Halve it. That gets you Then take a quarter of the half. Now, add the two together, the half and the quarter: 72 plus 18 in this case. You get Use Fibonacci numbers to do the conversion. This one's unusual, but it works. 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.
Imagine that you're being asked to convert 5 kilometers into miles. 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:. If you've ever run or walked in a mid-distance race, this is probably a familiar number; 5k or 3. In this case, the miles are rounded to one decimal point because most runners don't care about the extra 0. Context is very important when you're deciding which decimal place to round to.
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. The simplest way to do this is to perform the inverse of the operation you used to go from kilometers to miles. So if you multiplied by 0. There's just one problem here: How do you know if you should be dividing or multiplying by the conversion factor?
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