Kilometers to Miles (km to mi)
Convert kilometres to miles for road trips, running races and cycling routes.
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How to use
- Enter the distance in kilometres.
- Read the value in miles.
- Check the table for race distances.
How it works
Miles = kilometres ÷ 1.609344 (≈ km × 0.621371). A quick estimate: multiply by 6 and divide by 10 — 50 km ≈ 30 miles (exact: 31.07).
The factor is exact: since 1959 the international mile has been defined as 1,609.344 metres. The result is rounded only for display.
Examples
- 10K race
- 10 km = 6.21 miles.
- Marathon
- 42.195 km = 26.22 miles.
Common uses
- Running and cycling
- Road trips
- Speed and distance signs abroad
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
How many miles is 5K?
3.11 miles.
How many km in a mile?
1.609344 km.
Is this the nautical mile?
No. This converter uses the statute (land) mile. A nautical mile, used at sea and in aviation, is 1.852 km, so 10 km is 5.40 nautical miles.
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