How many cups come out of the white cake mix? (Using 2 white cake mixes) I am making a 16, 12. 8 and 4inch square pans. They are 2inches deep.

15 1/2. I can only get one 16 round out of a double recipe, so you will need a lot of batter! lol

does anyone know how many wasc recipes I need fore 12 & 10" square pans??