km to Miles Converter

🔒 Runs in your browser — nothing is sent to a server

Convert kilometers to miles using the international rate 1 mile = 1,609.344 m, which gives 1 km ≈ 0.6214 mile. Useful for trip planning between metric and imperial countries, comparing road race distances (a marathon is 42.195 km ≈ 26.2 mi), reading car odometers and converting speed limits. All conversion runs in your browser.

Kilometer (km)
Mile (mi)

Kilometer (km) → Mile (mi)

Quick reference table

Kilometer (km)Mile (mi)
1 km0.6214 mi
2 km1.2427 mi
5 km3.1069 mi
10 km6.2137 mi
25 km15.5343 mi
50 km31.0686 mi
100 km62.1371 mi

Glossary

Kilometer (km)

A kilometer is one thousand meters (1 km = 0.6214 mile = 0.5400 nautical mile). It is the standard road-distance unit everywhere except the United States, the United Kingdom and a handful of other countries. Marathon distances, highway speeds and geographic distances on most maps use kilometers.

Mile (mi)

A statute mile is 5,280 feet or exactly 1,609.344 m. It is the road-distance unit in the United States, the United Kingdom and a few other countries; speed limits there are posted in miles per hour. Do not confuse with the nautical mile, which is longer and based on Earth's arc.

Metric system (SI)

The metric system is a decimal system of measurement built around the meter for length, the kilogram for mass and the second for time, with multiples and submultiples expressed as powers of ten (millimeter, centimeter, kilometer). Adopted in France in 1799 and codified internationally as the International System of Units (SI) in 1960, it is now the official measurement system in nearly every country and the standard in science and engineering worldwide.

Imperial / US Customary system

The imperial system is the historical English system of weights and measures whose length units are the inch, foot, yard and mile (12 in = 1 ft, 3 ft = 1 yd, 1,760 yd = 1 mi). Codified by the British Weights and Measures Act of 1824 and aligned with US Customary by the international yard-and-pound agreement of 1959 (1 inch = 25.4 mm exactly), it is still used in the United States, the United Kingdom and a handful of other countries for everyday distances.

Related tools

Miles to Kilometers
Convert miles to kilometers — exact factor 1 mi = 1.609344 km
Kilometers to Nautical Miles
Convert km to nautical miles — 1 km = 0.5400 nmi (1 nmi = 1.852 km)
Meters to Kilometers
Convert meters to kilometers — 1 m = 0.001 km (1000 m = 1 km)
Length Converter
Convert length units between metric and imperial — mm, cm, m, km, inches, feet, yards, miles