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Convert square kilometer to square millimeter

Please provide a value below to convert square kilometer [km^2] to square millimeter [mm^2], or vice versa.

The square kilometer is a unit of area. By definition, 1 square kilometer [km^2] equals exactly 1000000000000.0 square millimeter [mm^2] — a fixed mathematical relationship, not an approximation.

square kilometer to square millimeter Conversion Table

square kilometer [km^2]square millimeter [mm^2]
1 km^21000000000000.0 mm^2
5 km^25000000000000.0 mm^2
10 km^210000000000000.0 mm^2
50 km^250000000000000.0 mm^2
100 km^2100000000000000.0 mm^2

Formula

1 square kilometer [km^2] = 1000000000000.0 square millimeter [mm^2]
1 square millimeter [mm^2] = 1.0E-12 square kilometer [km^2]
More area conversions →

Convert Square Kilometer to Other Area Units