Answer: 1 km² = 247.105 acres
72
Greater London covers an area of 1,579 sq. km (390,179 acres) The City of London covers about 26 sq. km (6,424 acres)
1 (sq kilometer) = 247.105381 acres
80.937 sq km
The state of Virginia encompasses about 27,375,488 acres.
3.1 square kilometers is about 766 (766.026683)acres.
89.03 sq km
16,753,745 acres per 67,800 square km
The CIA factbook lists Australia at 7,617,930 sq km of land [1] Converting to acres: 7,617,930 sq km = 1.8824315 × 10^9 acres [2] 1.88 billion acres of land [1] https://www.cia.gov/library/publications/the-world-factbook/geos/as.html#Geo [2] http://www.google.com/search?&q=7,617,930+sq+km+in+acres
1 million acres = 4046.856 sq km (to 3 dp).
12,000 acres = 48.56 km2
1 sq km = 100 hectares. 1 sq mile = 2.59 sq km so 509 hectares = 5.09 sq km = 1.97 sq mile. You might also like to remember that 1 sq mile = 640 acres, and 1 hectare = 2.47 acres
About 400 acres or 1.62 sq km