Convert Mile to Kilometer

One mi equals 1.609344 km. This converter allows you to easily convert between Mile and Kilometer in real time.

Formula

mi × 1.609344 = km

Example: 1 mi = 1.609344 km

What is Mile?

The mile is a unit of length in the imperial and US customary systems, defined as exactly 1,609.344 meters. Its origin traces back to the Roman "mille passus," meaning one thousand paces. In the United States and the United Kingdom, road distances and speed limits are posted in miles, and car odometers display mileage. The mile is also central to airline frequent-flyer programs, where travel distances are tracked and rewarded in miles.

What is Kilometer?

The kilometer is equal to 1,000 meters and is the standard unit for expressing distances between cities, road signs, and geographic measurements in most countries. It was introduced as part of the metric system during the French Revolution. A marathon race covers 42.195 kilometers, and most countries outside the United States use kilometers for speed limits and road distances. In scientific contexts, it is used for planetary distances and the sizes of geographic features.