This question cannot be answered sensibly. An acre is a measure of area, with dimensions [L2]. A kilometre is a measure of distance, with dimensions [L]. Basic dimensional analysis teaches that you cannot convert between measures with different dimensions such as these without additional information.
60.25 acres is 0.244 square kilometers.
42 acres is equivalent to 0.169967 square kilometers
28,000 acres = ~113.31 square kilometers.
16 (sq kilometers) = 3 953.6861 acres
There are approximately 0.0223 square kilometers in 5.5 acres.
Answer: 16,000 km² = 3,953,686.1 acres
5 acres is 0.0202342821 square kilometers.
Answer: 50 acres = 0.202342 km²
Answer: 12,500 acres = 50.5857 km²
14,000 acres is 56.65599 km2
230 acres is 0.931 square kilometer.
662 km2 is 163,584 acres.