Convert kilometers to miles
Enter a value in kilometers to convert it to miles.
kilometers to miles reference
| kilometers | miles |
|---|---|
| 1 km | 0.6214 mi |
| 2 km | 1.2427 mi |
| 5 km | 3.1069 mi |
| 10 km | 6.2137 mi |
| 25 km | 15.5343 mi |
| 50 km | 31.0686 mi |
| 100 km | 62.1371 mi |
The conversion factor
One kilometer is 0.62137119 miles. So to convert, multiply your figure in kilometers by 0.62137119. To go the other way, multiply miles by 1.609344, or use the miles to kilometers converter.
Doing it in your head
For a quick estimate, round the factor: roughly "divide by 2". Use the exact converter above when the number matters.
Where this conversion comes up
Height, distance, DIY measurements, maps, and any spec sheet that mixes metric and imperial.
See the common unit conversions cheat sheet for the factors worth memorising.
Related tools
Frequently asked questions
How many miles are in a kilometer?
1 kilometer = 0.621371 miles.
What is the formula to convert kilometers to miles?
Multiply the number of kilometers by 0.62137119. To go back the other way, multiply miles by 1.609344.
What is 10 kilometers in miles?
10 kilometers = 6.2137 miles. The reference table below lists more common values.
Is this converter accurate?
It uses the internationally defined conversion factors and computes at full floating-point precision, then rounds only the displayed result. For everyday purposes it is exact; for legal, engineering or scientific work, confirm the required number of significant figures.
Does it work offline?
Yes. The conversion runs in your browser with no server call, so it keeps working with no connection, and nothing you enter is uploaded.
Last reviewed: September 2026. Figures and formulas are checked against their published sources; see the site's data notes.