With this information, you can calculate the quantity of acres 690 square meters is equal to.

¿What is the inverse calculation between 1 acre and 690 square meters?

Performing the inverse calculation of the relationship between units, we obtain that 1 acre is 5.8650328 times 690 square meters.

Which is the same to say that 690 square meters is 0.17050203 acres.

Six hundred ninety square meters equals to zero acres. *Approximation

A acre is five times six hundred ninety square meters. *Approximation