Kilometers to Miles Converter
Formula
miles = km × 0.621371
To convert kilometers to miles, multiply by 0.621371. One kilometer equals approximately 0.621 miles.
How to use
- Enter the distance in Kilometers.
- Read the equivalent distance in miles below.
- Adjust the value to convert any other distance.
Example
Convert 10 km: 10 × 0.6213712 = 6.21 miles. So a 10K race is about 6.21 miles.
Frequently Asked Questions
How many miles is 5 km?
5 km = approximately 3.11 miles.
How many miles is a 10K?
A 10K race is 10 km = approximately 6.21 miles.
How do I convert my car's speed or odometer from km to miles per hour?
The same factor applies to speed as to distance, so multiply km/h by 0.6214 to get mph. For instance, 100 km/h is about 62 mph, a typical highway speed. If your rental car abroad shows only km/h, this quick multiplication helps you stay within mph-based mental limits.
How many miles is a marathon in kilometers?
A full marathon is 42.195 km, which converts to about 26.22 miles, the familiar 26.2 mile distance. A half marathon is 21.0975 km, or roughly 13.1 miles. These exact distances are fixed by World Athletics, so race courses are measured precisely to match.