Kilometers (km) to Miles (mi) Converter
Enter a value to instantly convert between length units.
1 Kilometer = 0.6214 Mile
Key Formulas
Centimeter → Inch
in = cm × 0.393701Kilometer → Mile
mi = km × 0.621371Foot → Meter
m = ft × 0.3048Inch → Centimeter
cm = in × 2.54Formula
mi = km × 0.621371The kilometer is the standard unit for road distances in most of the world, while the mile remains the everyday distance unit in the United States, UK, and a few other countries. The two units differ by about 61% — a kilometer is shorter than a mile — which creates real confusion when following foreign road maps, race results, or GPS directions set to the wrong unit.
Source: NIST SP 811, Table B.8
Frequently Asked Questions
Real-World Examples
The official marathon distance is 42.195 km; American runners often refer to it as 26.2 miles, which is how race distances are advertised at US events.
42.195 km = 26.22 mi
A popular road race format is the 10 km run; US participants sometimes see it listed as a 10K and wonder how far that is in miles — it's about 6.2.
10 km = 6.21 mi
A French road sign shows the next city is 100 km away; an American driver renting a car in Europe wants to know that's about 62 miles to gauge the drive time.
100 km = 62.14 mi
A fitness tracker records a walk as 1 km; the user switched the app's display to miles and wants to confirm that 0.62 miles is the correct readout.
1 km = 0.62 mi