Square Kilometers to Square Miles Converter

Convert area between km² and mi² bidirectionally with common reference values.

Square kilometers (km²)

Square miles (mi²)

—1 km² = 0.38610215854245 mi²

How to use this Square Kilometers to Square Miles Converter

Convert square kilometers to square miles 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.