A five pound bag of flour should have about 20 cups. That is assuming you are not using heaping cups for flour.
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1 pound of flour is about 4 cups so 5 pounds of flour is about 20 cups.
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It depends on what size bag. There are 20 cups of flour in a 5 pound bag & 40 cups in a 10 pound bag! 1 cup of flour is equal to 1/4 pound.
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One cup of flour equals four ounces. With 16 ounces in one pound, you'll have four cups in one pound, or 20 cups in a fivepound bag. However, the only way you'll get that many cups
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