Enter the value in square millimeters to get the conversion into square kilometers:
The square millimeter is a submultiple of the square meter. It is often used to measure quite small areas like a power cable section. The square kilometer is a multiple of the square meter. It is one million square meters.

Other available unit conversions of areas

Convert square millimeters into square yards - mm2 into sq-yd Conversion of square millimeters into square feet - mm2 into sq-ft Convert square millimeters into square inches - mm2 into sq-in Conversion of square millimeters into square chains - mm2 into sq-ch Convert square millimeters into square miles - mm2 into sq-mi Conversion of square decameters into square kilometers - dam2 into km2 Convert square hectometers into square kilometers - hm2 into km2 Convert square yards into square kilometers - sq-yd into km2 Conversion of square feet into square kilometers - sq-ft into km2
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