Convert km to miles
Enter the value to convert from kilometer to mile.
How to Convert Kilometer to Mile
Converting kilometer to mile is straightforward using our conversion calculator.
Conversion Formula
mi = km ÷ 1.609344Reverse conversion: Convert miles to km
Comparison: Kilometer vs Mile
When to Use Each Unit
Kilometer: Standard unit for road distances, geographic measurements, and travel distances worldwide except in countries using miles.
Mile: Primary distance unit in the United States and some Commonwealth countries for road travel and geographic distances.
Common Conversion Values
- 1 km = 1000 m
- 1 km ≈ 0.621 mi
- 1.609 km = 1 mi
- 1.852 km = 1 nmi
About Kilometer
Definition: The kilometer (symbol: km) is a unit of length equal to one thousand meters. Primary unit for measuring longer distances on Earth.
History: Introduced with the metric system to replace traditional long-distance units like leagues and miles in metric countries.
Current Use: Standard unit for road distances, geographic measurements, and travel distances worldwide except in countries using miles.
Examples: City distances: 5-50km, marathon: 42.2km, country sizes: hundreds to thousands of km
About Mile
Definition: The mile (symbol: mi) is an imperial unit equal to 5,280 feet or approximately 1.609 kilometers.
History: Derived from Roman "mille passus" (thousand paces). Standardized in 1593 in England as 5,280 feet.
Current Use: Primary distance unit in the United States and some Commonwealth countries for road travel and geographic distances.
Examples: Road distances: 1-1000 miles, running: 5K = 3.1 miles, city size: 5-50 miles across, state width: 100-1000 miles