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# Convert Miles to Km - Convert Km to Miles

## Convert miles into km and vice versa

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## Miles and Kilometers

The mile and the kilometer are both units of length. The mile is used in countries that use the imperial system, while the kilometer is used in countries that use the metric system.

### What is a mile?

A mile is an imperial unit of measurement that is equal to 1.60934 kilometers. The term "mile" comes from the Latin word for a thousand, "mille", because a mile was originally defined as 1,000 Roman paces.

In history, there were many variations of the mile, all of which had different lengths. For example, there was the Dutch mile, which was 5,000 meters, and the French mile, which was 4,444.44 meters.

### What is a kilometer?

A kilometer is a unit of measurement in the metric system, which is equal to 1,000 meters. The term "kilometer" comes from the Greek word "khilioi", which means a thousand, and "metron", which means measure.

### Conversion factor

The conversion factor from miles to kilometers is about 1.60934. That means that one mile is about 1.60934 kilometers.

`1 mile = 1.60934 km`

Conversely, the conversion factor from kilometers to miles is about 0.621371, so one kilometer is about 0.621371 miles.

`1 km = 0.621371 miles`

### In which countries are miles and kilometers used?

Miles are mainly used in the United States, the United Kingdom, and other countries that use the imperial system. Kilometers, on the other hand, are used in most other countries, including most European countries, which use the metric system.

### Where are miles often used?

Miles are often used to indicate distances, for example on road signs and in navigation systems. They are also used in air and sea navigation. For example, the speed of airplanes is usually indicated in knots, which is nautical miles per hour.

It can be useful to convert miles to kilometers, for example when you are traveling between countries that use different measurement systems, or when you are doing scientific calculations where it is more convenient to work with the metric system.