Square Miles to Square Kilometers Converter
Convert square miles to square kilometers, the units used for the size of regions, countries and large tracts of land. Swap to go the other way.
Convert square miles and square kilometers
Frequently Asked Questions
2.58999 km². One square kilometer is 0.386102 square miles.
It is. A mile is 1.609344 km, and squaring that gives 2.58999. Area scales with the square of the length factor.
Exactly 640, which is why a US survey section is one square mile.
Yes. A mile is exactly 1,609.344 m by international agreement.