Miles to Kilometers Converter
Enter a value to instantly convert between length units.
1 Mile = 1.6093 Kilometer
Key Formulas
Centimeter → Inch
in = cm × 0.393701Kilometer → Mile
mi = km × 0.621371Foot → Meter
m = ft × 0.3048Inch → Centimeter
cm = in × 2.54Formula
km = mi × (1609.344 / 1000)One international statute mile is 1.609344 km, so converting miles to kilometers multiplies by 1609.344 / 1000. Since 1959, the mile has equaled 5,280 international feet of 0.3048 m each. Travelers, runners, and drivers use this conversion for road distances and race lengths: a 26.2 mi race is about 42.16 km, and 100 mi is 160.9344 km. The kilo- prefix means one thousand (BIPM SI prefix table). The US survey mile is about 2 parts per million longer, and the NIST revised definitions separate it from the mile used here.
Source: NIST named international length definitions (definition-derived arithmetic)
Reviewed by the Convert Calc editorial team · Last reviewed: · see our methodology
Frequently Asked Questions
Real-World Examples
One mile on a US road sign, in kilometers.
1 mi = 1.609344 km
Marathon distance quoted in miles, converted to km.
26.2188 mi = 42.19506847 km
A 100 mile drive planned on a metric GPS.
100 mi = 160.9344 km
A 5 mile run logged in a metric fitness app.
5 mi = 8.04672 km