For ~14 oz boxes, there are about 6 cups/box for wheat, and 12-13 cups/box for rice and corn. 2 boxes of wheat and 1 box each of the others will make you 4 big batches of chex mix.
Previous answer- There are 2 cups in a 16 oz box since 1 cup is 8 oz What most people don't relies is a 16oz box of macaroni is actually measured in net weight not volume. A cup is volume. 1 cup of...