How to use the miles to kilometers converter
Enter miles and multiply by 1.609344 to convert to kilometers.
Miles to kilometers
One international mile equals exactly 1,609.344 meters, or 1.609344 kilometers.
Example: Henry converts a running distance
Henry plans a 10-mile route. Using 1 international mile = 1.609344 kilometers, the route is 16.09344 kilometers.
A nautical mile is a different unit. This converter uses ordinary international statute miles, as used in road and running distances.
Miles to kilometers conversion factor
One international mile equals exactly 1.609344 kilometers. Multiply miles by 1.609344 to convert a distance to kilometers.
For road signs and everyday travel, one or two decimal places is often enough. For technical work, preserve more digits if the original distance supports that precision.
Common miles-to-kilometers conversions
1 mile
1.609344 kilometers.
5 miles
About 8.05 kilometers.
10 miles
About 16.09 kilometers.
26.2 miles
About 42.16 kilometers.
Assumptions and limitations
What the estimate assumes
Displayed decimals may be rounded.
Sources and reference material
Miles to Kilometers Converter FAQs
How many kilometers are in one mile?
Exactly 1.609344 kilometers.
What is 5 miles in kilometers?
About 8.05 kilometers.
How long is a marathon in kilometers?
A standard marathon is about 42.195 kilometers, which is about 26.2 miles.
Does the converter show meters?
Yes.
How do I convert miles to kilometers?
Multiply miles by 1.609344.
Exact unit conversion; displayed decimals may be rounded for readability.