Square Miles to Square Kilometers Converter

Convert area between mi² and km² using the exact international mile relationship.

Square miles (mi²)

Square kilometers (km²)

—1 mi² = 2.589988110336 km²

How to use this Square Miles to Square Kilometers Converter

Convert square miles to square kilometers and back. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.