Miles to KM Converter
Convert miles to kilometers (km) or kilometers to miles instantly. Use this free distance converter for road trips, running, cycling, travel and distance comparisons.
Enter a value in either field to convert instantly. Use the swap button to reverse the conversion.
How to convert miles and kilometers
Multiply miles by 1.609344 to get kilometers. To convert kilometers to miles, divide by 1.609344.
km = miles × 1.609344
Reverse formula: miles = kilometers ÷ 1.609344
Common miles and kilometers conversions
Use these quick reference values for everyday measurements. Results are rounded for display; the converter uses the defined conversion factor.
When to use this converter
Miles and kilometers are both used for road distances, navigation, running, cycling and travel. A dedicated miles to kilometers converter helps compare distances shown in different countries or apps.
This tool uses the exact international statute-mile relationship of 1 mile = 1.609344 kilometers. Nautical miles are a different unit and are not used by this formula.
Frequently asked questions
How many kilometers are in one mile?
One international statute mile equals exactly 1.609344 kilometers.
How do I convert miles to kilometers?
Multiply miles by 1.609344. For example, 10 miles equals 16.09344 kilometers.
How do I convert kilometers to miles?
Divide kilometers by 1.609344. For example, 10 km is approximately 6.21371 miles.
Does this converter use nautical miles?
No. It converts statute miles commonly used for road distances. One nautical mile equals 1.852 kilometers.