Calories in 1/2 Cup of Sugar
1/2 cup of sugar (100 g) has 401 calories. That is 20% of a 2,000 calorie diet.
The calories come from 0 g of protein, 0.3 g of fat and 100 g of carbohydrates, a split of 0% protein, 1% fat and 99% carbs. For comparison, 1/4 cup of sugar has 201 and 3/4 cup of sugar has 602 calories. Burning 401 calories takes about 72 minutes of brisk walking or 32 minutes of running for a 155 lb adult, based on Harvard Health Publishing activity estimates.
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Sugar calories by serving size
Common amounts of sugar with calories and macros. Tap a row for its full nutrition page.
Sugar vs similar foods
Calories per 100 g compared with other sweets and desserts.
Sugar: common questions
How many calories are in 1/2 cup of sugar?
1/2 cup of sugar weighs about 100 g and has 401 calories.
How much protein is in 1/2 cup of sugar?
1/2 cup of sugar has 0 g of protein, which is 0% of the 50 g Daily Value.
How many carbs are in 1/2 cup of sugar?
1/2 cup of sugar has 100 g of carbohydrates, including 0 g of fiber and 100 g of sugars.
How much sugar is 100 calories?
100 calories of sugar is 25 g, about 11 cubes of sugar.
More about sugar
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Weights and conversions
Source: USDA FoodData Central, FNDDS 2021-2023. FDC ID 2710258. Original description: Sugar, white, granulated or lump. Portion weights are USDA household measures.