km to miles
Convert kilometers to miles (or miles to kilometers) instantly. Type a value in either field and the other updates live; use the swap button to flip the direction.
How It Works
One mile is exactly 1.609344 kilometers, so to convert kilometers to miles you divide the number of kilometers by 1.609344. To go the other way, multiply miles by 1.609344.
Frequently Asked Questions
How many kilometers are in a mile?
One mile is exactly 1.609344 kilometers. To convert kilometers to miles, divide the number of kilometers by 1.609344.
Is 1.6 km per mile close enough for everyday use?
For rough estimates, dividing or multiplying by 1.6 gives a good approximation. The exact value of 1.609344 is better when precision matters.
Why does the United States use miles instead of kilometers?
The United States kept the customary system when most of the world adopted the metric system in the 19th and 20th centuries. Road distances and speed limits there are still in miles.