Convert miles to kilometers instantly using the exact factor, where one mile equals 1.609344 kilometers. This is a classic travel and fitness conversion, needed for road distances, running and cycling routes, car odometers, and understanding maps or race distances quoted in the other system. Type any number of miles and the kilometer equivalent updates live as you type, with enough decimal places to stay accurate for planning and training. The factor is easy to misremember as a rounded 1.6, which introduces error over long distances, so the tool uses the exact value. It all runs in your browser, so the answer is immediate, your input stays private, and the converter keeps working offline once the page has finished loading the first time.