What is square kilometre?

A square kilometre is a metric unit of area equal to one million square metres. It is used for measuring large geographic areas such as countries, forests, lakes, and urban zones.

What is square mile?

A square mile is a unit of area in imperial and US customary systems equal to 640 acres. It is used to express the size of cities, regions, and geographic territories in the United States and United Kingdom.

Worked examples

1 square kilometre = 0.38610216 square mile

1 square mile = 2,589,988.110336 square metre