Convert kilometers to miles (or miles to kilometers) instantly with our free distance converter. Perfect for international travel, running distances, road trips, and understanding metric vs. imperial measurements.
Distance Converter
Kilometers to Miles Formula
1 kilometer = 0.621371 miles. So to convert km to miles, multiply by 0.621371. To convert miles to km, multiply by 1.60934.
Common Km to Miles Conversions
- 1 km = 0.62 miles
- 5 km = 3.11 miles (popular race distance)
- 10 km = 6.21 miles
- 21.1 km = 13.1 miles (half marathon)
- 42.2 km = 26.2 miles (full marathon)
- 100 km = 62.14 miles
Frequently Asked Questions
How many miles is 1 kilometer?
1 kilometer equals 0.621371 miles. As a quick estimate, multiply km by 0.6 to get approximate miles.
How many kilometers is 1 mile?
1 mile = 1.60934 kilometers. As a quick estimate, multiply miles by 1.6 to get approximate kilometers.
How far is a 5K in miles?
A 5K race is 5 kilometers, which equals approximately 3.11 miles. It's one of the most popular race distances for beginners and casual runners.
What countries use kilometers vs. miles?
Most of the world uses kilometers. The United States, United Kingdom (for road distances), Liberia, and Myanmar are among the few countries that primarily use miles.
How far is a marathon in kilometers?
A marathon is exactly 42.195 kilometers (26.219 miles). A half marathon is 21.0975 km (13.109 miles).