With this information, you can calculate the quantity of acres 42 square kilometers is equal to.
¿What is the inverse calculation between 1 acre and 42 square kilometers?
Performing the inverse calculation of the relationship between units, we obtain that 1 acre is 9.635411e-05 times 42 square kilometers.
Which is the same to say that 42 square kilometers is 10378.385 acres.
Forty-two square kilometers equals to ten thousand three hundred seventy-eight acres. *Approximation
A acre is nine times forty-two square kilometers. *Approximation