Four cups of sugar is a common measurement used in cooking and baking. It is equivalent to approximately 800 grams or 28 ounces. This amount is often used in recipes for desserts, such as cakes, cookies, and candies, where sweetness is a key component. In terms of volume, one cup of sugar is about the size of a standard coffee mug. When measuring sugar, it is important to use a dry measuring cup and to level off the top for accuracy. Granulated sugar, brown sugar, and powdered sugar can all be measured in cups, but they may have different weights.