Miles to Kilometers (mi to km)
Convert miles to kilometres for US and UK road distances, running plans and flight distances.
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How to use
- Enter the distance in miles.
- Read the value in kilometres.
- Use the table for common distances.
How it works
Exact factor: 1 mile = 1.609344 km (the international mile). Quick estimate: multiply by 1.6, or by 1.5 and add 7 % (10 mi → 16 km, exact 16.09 km).
Running distances are a good reference: a 5K is 3.11 mi, a 10K is 6.21 mi, a half marathon is 13.11 mi (21.0975 km) and a marathon is 26.22 mi (42.195 km).
Examples
- Half marathon
- 13.1 mi = 21.08 km.
- Road trip
- 250 mi = 402.3 km.
Common uses
- Travel in the US and UK
- Running plans
- Car mileage
Privacy & security
This tool runs entirely in your browser. Your files and text are never uploaded to our servers — processing happens on your device and results are created locally. How each tool handles files
Frequently asked questions
Is a nautical mile the same?
No, a nautical mile is 1.852 km. Use the length converter for nautical miles.
How many km is 26.2 miles?
42.16 km (the marathon is officially 42.195 km).
How many km is 10 miles?
10 mi = 16.09 km.
How many km is 60 miles?
60 mi = 96.56 km.
How many km is 1 mile?
1 mi = 1.609 km.
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