The number of cups in 200 grams of a substance depends on the item's density. Cups are a unit of volume, and grams are a unit of mass. For example, 200 grams of water is approximately 0.845 cups of water.

To calculate the number of cups that make up 200 grams of something, one must first convert to cups. The first step is to convert from mass to volume by dividing 200 by the item's density in grams/milliliter. For example, water has a density of 1 g/mL, so 200 grams water / (1 g/mL) = 200 mL. Then, one can convert from mL to cups by using the ratio 1 cup/236.59 mL. The number of cups of water is 200 mL x (1 cup/236.59 mL) = 0.845 cups. Similar calculations can be made for other liquids and substances as long as the density is known.