How to convert km to mi
Use the formula miles = kilometres × 0.621371. Type any value in the box above and the answer updates instantly.
Convert kilometres to miles instantly. Useful for running distances, road trips and travel.
Frequently asked questions
How many miles is 1 km?
1 kilometre equals about 0.621371 miles.
How many miles is a 5K?
A 5 kilometre run is about 3.11 miles.
How many miles is a marathon?
A marathon is 42.195 km, which is 26.2 miles.