Miles to Kilometers

How to convert miles to kilometers

Multiply miles by 1.609344. One international mile equals exactly 1.609344 kilometers. Enter any number above and the result updates instantly. The calculator keeps additional precision internally and displays a readable result for everyday use.

Worked examples

• 1 mile = 1.609344 kilometers.
• 5 miles = 8.04672 kilometers.
• 10 miles = 16.09344 kilometers.
• 26.2 miles ≈ 42.1648 kilometers.

When this conversion is useful

Miles are widely used for road distances in the United States and United Kingdom, while kilometers are used in most other countries. This conversion helps with travel plans, route distances, running events and vehicle information.

Accuracy and rounding

Keep extra decimal places until the final step when the value will be used in another calculation. For regulated, engineering, medical or safety-critical work, follow the precision and reference standards required by that application.

Frequently asked questions

How do I convert miles to kilometers?

Multiply miles by 1.609344. One international mile equals exactly 1.609344 kilometers.

Can I reverse the calculation?

Yes. Select the reverse option above or use the full category converter for additional units.

Calculation review: Formula and representative examples reviewed October 8, 2026.