Brown sugar is typically measured as packed, affecting its volume per pound. This measurement may vary slightly depending on the density of the sugar and how it is sifted. This online cooking icing sugar conversion tool is for culinary arts schools and certified chefs. This weight to volume converter for recipes will show you the quantity of us cups contained in 1 pound of icing sugar , as well as, in many other cooking ingredients and other weight units. This measurement can vary slightly depending on factors such as humidity, storage conditions, and measurement technique. How many us cups of icing sugar in 1 pound ? Granulated sugar provides the fewest cups per pound due to its smaller grain size and heavier weight. 1 lb icing sugar to cups baking chart helps bakers achieve accuracy. Convert how many us cups (cup us) of icing sugar are in one 1 pound ( lb ). · one pound of icing sugar equals approximately 3. 75 to 4 cups when measured properly. Convert pounds to cups (lb to c) with the sugar conversion calculator, and learn the pound to cup formula. · one pound of icing sugar is equal to approximately 3 and 3/4 cups. · use this easy chart to see how many cups of powdered, brown and granulated sugar equal one pound. Precise ingredient measuring makes recipes work consistently well, every time.