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Category: area Conversion: Acres to Square Kilometers The base unit for area is square meters (Non-SI/Derived Unit) [Acres] symbol/abbrevation: (ac) [Square Kilometers] symbol/abbrevation: (km2, sq km)
How to convert Acres to Square Kilometers (ac to km2, sq km)? 1 ac = 0.00404686 km2, sq km. 169000000 x 0.00404686 km2, sq km = 683919.34 Square Kilometers. Always check the results; rounding errors may occur.
Definition:
The acre is a unit of land area used in the imperial and US customary systems. It is defined as the area of 1 chain by 1 furlong (66 by 660 feet), which is exactly equal to 1/..more definition+
In relation to the base unit of [area] => (square meters), 1 Acres (ac) is equal to 4046.86 square-meters, while 1 Square Kilometers (km2, sq km) = 1000000 square-meters.