With this information, you can calculate the quantity of square kilometers 420 square meters is equal to.
¿What is the inverse calculation between 1 square kilometer and 420 square meters?
Performing the inverse calculation of the relationship between units, we obtain that 1 square kilometer is 2380.9524 times 420 square meters.
Which is the same to say that 420 square meters is 0.00042 square kilometers.
Four hundred twenty square meters equals to zero square kilometers. *Approximation
A square kilometer is two thousand three hundred eighty times four hundred twenty square meters. *Approximation
