How Many Cups Is 1 Lb Confectioners Sugar?

Four cups will be roughly equivalent to one pound when measuring powdered sugar.

How many cups of confectioners sugar are in a one-pound bag?

Powdered sugar directly from the box or plastic bag weighs 4 1/2 ounces per cup; therefore, a 1-pound box (or 16 ounces) provides approximately 3 1/2 cups of powdered sugar. If a recipe asks for powdered sugar, 4 ounces of powdered sugar will equal 1 dry measuring cup.