With this information, you can calculate the quantity of square meters 40 square kilometers is equal to.
¿What is the inverse calculation between 1 square meter and 40 square kilometers?
Performing the inverse calculation of the relationship between units, we obtain that 1 square meter is 2.5e-08 times 40 square kilometers.
Which is the same to say that 40 square kilometers is 40000000 square meters.
Forty square kilometers equals to forty million square meters. *Approximation
A square meter is two times forty square kilometers. *Approximation