Convert Square Miles to Square Kilometers
One square mile equals 2.589988 square kilometers. Type any value to convert square miles to square kilometers instantly — with a full reference table below.
Convert Square Miles to Square Kilometers
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Conversion formula
To convert square miles to square kilometers, multiply by 2.589988. One square mile equals 2.589988 km², and one square kilometer equals 0.386102 mi².
Square Miles to Square Kilometers table
About converting Square Miles to Square Kilometers
Square Miles (mi²) and Square Kilometers (km²) are both units of area. The exact factor is 1 mi² = 2.589988 km², so multiply by 2.589988 to go from square miles to square kilometers (or divide to go back).
The conversion is exact and runs entirely in your browser. Need the reverse? Use the Square Kilometers to Square Miles converter, or the full unit converter for every unit at once.