How to convert mi to km
Use the formula kilometres = miles × 1.609344. Type any value in the box above and the answer updates instantly.
Convert miles to kilometres instantly, with a reference table and the exact formula.
Frequently asked questions
How many km is 1 mile?
1 mile equals exactly 1.609344 kilometres.
How many km is 10 miles?
10 miles equals 16.09 kilometres.
How many km is a marathon?
26.2 miles equals 42.195 kilometres.