Mile (mi):
The mile (mi) is the primary long-distance unit used in the United States and the UK. One mile equals 5,280 feet or roughly 1.609 kilometers. Miles are used on road signs, for driving distances, and in speed limits (miles per hour). They are also used in many racing and endurance events.
Kilometer (km):
The kilometer (km) is widely used around the world to measure long distances, such as highways, travel between cities, and large-scale geographic features. It is the standard distance unit in most countries outside the United States and is commonly found on road signs and travel guides.
How to convert miles to kilometers
Option 1: The fastest way – Use our converter
For instant results, just type your measurement into the mi to km converter at the top of this page. It's quick, accurate, and hassle-free.
Option 2: The diy way – Use the formula
If you prefer to calculate it yourself, it's straightforward. You only need to remember one number: 1.609344. This is because one mile is internationally defined as exactly 1.609344 kilometer.
The formula is simple:Kilometers = Miles × 1.609344
Here's how to do it:
Take your measurement in miles.
Multiply that number by 1.609344.
The answer is the measurement in kilometers.
Example: Let's convert 10 mi to km.
Calculate: 10 × 1.609344 = 16.0934
Result: equals 16.0934 km
It's really that easy.