Convert Square Kilometers to Square Miles

Use our accurate converter to change square kilometers into square miles. This tool is simple to use and works instantly.

How to Calculate

To change square kilometers to square miles, you just need to know the conversion factor.

Rule: 1 Square Kilometers = 0.3861021586 Square Miles

Square Kilometers to Square Miles

Pre-defined calculator for direct square kilometers to square miles conversion.

From

Square Kilometers (km²)

To (Result)

Square Miles (mi²)

Formula: 1 Square = 0.38610216 Square

Definition: A square kilometer is used for measuring large areas of land.

History: It is the area of a square with sides that are 1,000 meters long.

Where it is used: Used for measuring the size of cities, parks, and countries.

Calculation: To convert square kilometers to square miles, multiply the value by the conversion factor (0.3861021586).

Example: convert 15 km2 to mi2:
15 km2 = 15 × 0.3861021586 mi2 = 5.7915323789 mi2

Explore all available conversion pairs for square kilometers to other professional area metrics.

Access our high-fidelity calculators for other measurement systems and engineering metrics.