Miles to Kilometers Calculator
Convert a distance in miles to kilometers. Enter miles to see the equivalent in kilometers.
How It Works
Kilometers = Miles × 1.609344
One international mile equals exactly 1.609344 kilometers, by definition. Multiply miles by this factor to get kilometers. This is the standard conversion used internationally.
Worked Examples
Example 1. 10 miles × 1.609344 = 16.09 km.
Example 2. 26.2 miles (marathon) × 1.609344 ≈ 42.16 km.
When to Use This Calculator
Use when reading US road distances in a country that uses metric, converting running or cycling race distances, or working with international maps.
Frequently Asked Questions
How many kilometers is 1 mile?
Exactly 1.609344 km.
Is this the same as nautical miles?
No. A nautical mile is 1.852 km, used in aviation and maritime navigation.
What is the reverse?
Use the Kilometers to Miles Calculator.
Educational estimate only. Results are for planning and comparison purposes. They are not financial, tax, or professional advice. Verify important figures with a qualified professional before making financial decisions. See our Financial Disclaimer.