Convert kilometers to miles instantly — with meters, feet, and walking/jogging time included.
This free km to miles converter uses the exact conversion factor: 1 mile = 1.609344 km (defined exactly since 1959), therefore 1 km = 0.621371192 miles. Road distances in the US and UK are measured in miles; most other countries use kilometers.
Notable distances: a parkrun is exactly 5 km (3.107 miles), a 10 km race is 6.214 miles, a half marathon is 21.0975 km (13.109 miles), and a full marathon is 42.195 km (26.219 miles). Speed limits in km/h and mph are also converted by the same factor — 100 km/h = 62.1 mph.
Quick reference: 1 km = 0.621 mi · 5 km = 3.11 mi · 10 km = 6.21 mi · 42 km = 26.1 mi · 100 km = 62.1 mi · 1 mile = 1.609 km