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How Many Calories Are in One Cup of Sugar?

author image D.M. Gutierrez
A freelance writer for more than 30 years, D.M. Gutierrez has had nonfiction, fiction and poetry published in women's, mystery, academic, children's, disability and teen print publications and websites including "Psychological Reports" and "Highlights for Children." She has an advanced degree in psychology from the University of California at Davis.
How Many Calories Are in One Cup of Sugar?
A cup of white refined sugar on a white wooden table. Photo Credit: YelenaYemchuk/iStock/Getty Images

Sugar comes in many forms and from several sources. Granulated sugar (sucrose) originates primarily from sugar cane or sugar beets. Other sources of sugar include maple trees, sorghum and date palms. Sugar, whether granulated, powdered or brown, is almost pure carbohydrate.

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White Sugar

One cup of granulated white sugar has 774 calories. Granulated sugar is also known as white sugar, refined sugar and table sugar. Granulated sugar is white because all the molasses content of sugar cane is removed during processing.

Brown Sugar

A packed cup of brown sugar contains 836 calories. Brown sugar is often used to keep baked goods such as chocolate chip cookies and molasses bread moist. Brown sugar is brown and soft because some of the sugar cane’s molasses content is left in during processing.

Confectioner's Sugar

A cup of sifted confectioner’s sugar contains 390 calories, while an unsifted cup contains 468 calories. Also known as powdered sugar or icing sugar, confectioner’s sugar is used by bakers in frostings for cakes and cookies. This sugar is ground from granulated sugar to a fine powder.

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