Km is distance, Acre is area - they don't compare. You've got to have square kilometers for the comparison to mean anything.
There are about 4,046.9 square meters in one acre.
1 acre = 43,560 square feet
One acre is 6,272,640 square inches.
43560 square feet in one acre
One acre is 0.00404686 square km
One acre is equivalent to approximately 0.00405 square kilometers.
Answer: 1 acre = 0.004046 km²
One acre is 0.004 square kilometers, so 166 square kilometers would be 41,500 acres.
An acre is a unit of area, not distance, so it doesn't equate to a specific number of kilometers. One acre is equal to 0.004047 square kilometers.
Km is distance, Acre is area - they don't compare. You've got to have square kilometers for the comparison to mean anything.
There are about 4,046.9 square meters in one acre.
43560 square feet in one acre.
1 acre = 43,560 square feet
43,650 square feet in one acre.
There are 4,047 square meters in one acre.
1 acre = 4,046.85642 square meters