Kilometers to Miles Converter
This kilometer to mile converter changes a distance in km into miles. It loads in the length category with kilometer as the source and mile as the target, so entering a road distance, run length, or flight range returns the imperial figure immediately: 1 km = 0.621371 mi, 5 km is about 3.107 mi, and a marathon's 42.195 km is about 26.219 mi. It is useful for runners comparing race distances, drivers reading foreign road signs, and travellers planning routes. The swap button reverses the direction for miles to kilometers. All calculations run in JavaScript on your device, so no data is uploaded or stored. The result updates as you type.
How to use this tool
Overview
This kilometer to mile converter changes a distance in km into miles. It loads in the length category with kilometer as the source and mile as the target, so entering a road distance, run length, or flight range returns the imperial figure immediately: 1 km = 0.621371 mi, 5 km is about 3.107 mi, and a marathon's 42.195 km is about 26.219 mi. It is useful for runners comparing race distances, drivers reading foreign road signs, and travellers planning routes. The swap button reverses the direction for miles to kilometers. All calculations run in JavaScript on your device, so no data is uploaded or stored. The result updates as you type.Formula
1 km = 0.621371 milesFrequently asked questions
How many miles is 1 km? +
One kilometer equals 0.621371 miles. A handy approximation is that 8 km is about 5 miles.
How long is a 5K in miles? +
5 km × 0.621371 = 3.107 miles, slightly more than three miles.
Can I convert miles to km? +
Yes, use the swap button or open the miles-to-km page; both use the same factor.
What unit categories does the converter support? +
This tool converts length, weight, temperature, area, volume, speed, time, data storage, and many more categories.
Can I convert between metric and imperial units? +
Yes. Convert freely between metric (km, kg, liters) and imperial (miles, pounds, gallons) systems, and many other unit systems.
How accurate are the conversions? +
All conversions use precise mathematical factors. Results are displayed with up to 10 decimal places for maximum accuracy.
Does it support currency conversion? +
The tool focuses on physical units. For currency conversion with live exchange rates, a dedicated currency tool is recommended.