Square Miles to Square Kilometers (mi² to km²) Conversion

How much are 1 Square Miles in Square Kilometers ?

1 Square Miles are equal to 2.5899881 Square Kilometers . Converting 1 Square Miles to Square Kilometers is easy. Simply use our calculator above, or apply the formula to change the length.

What is a Square Miles (mi²)

Definition: A square mile (mi²) is an imperial unit of area equal to a square with sides of one mile.

History: Historically used in land surveying and property measurement in English-speaking countries.

Current Use: Commonly used to measure large geographical areas such as cities and national parks.

What is a Square Kilometers (km²)

Definition: A square kilometer (km²) is a metric unit of area equal to a square with sides of one kilometer.

History: Adopted with the metric system, it replaced traditional units like square miles in many countries for land measurement.

Current Use: Used in geography, land surveying, and environmental studies to measure large land areas.