The amount of cups of flour that is in 225 grams is only one cup. That is because a cup is equal to 225 grams total. So two cups would be 450 grams, and so on.

225 grams of flour is .95 cups. The formula to convert grams to cups is 1 gram = 0.00423. So, you would multiply how many grams you have by 0.00423 to find out how many cups you need.