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Category: area Conversion: Square Feet to Square Kilometers The base unit for area is square meters (Non-SI/Derived Unit) [Square Feet] symbol/abbrevation: (ft2, sq ft) [Square Kilometers] symbol/abbrevation: (km2, sq km)
How to convert Square Feet to Square Kilometers (ft2, sq ft to km2, sq km)? 1 ft2, sq ft = 9.2903E-8 km2, sq km. 4548037784 x 9.2903E-8 km2, sq km = 422.52635424695 Square Kilometers. Always check the results; rounding errors may occur.
Definition:
The square foot (plural square feet; abbreviated ft2 or sq ft) is an imperial unit and U.S. customary unit (non-SI, non-metric) of area, used mainly in the United States ..more definition+
In relation to the base unit of [area] => (square meters), 1 Square Feet (ft2, sq ft) is equal to 0.092903 square-meters, while 1 Square Kilometers (km2, sq km) = 1000000 square-meters.