Calories in Sugar
1 cube of sugar (2 g) has 9 calories, with 0 g of protein, 0 g of fat and 2.3 g of carbohydrates. Per 100 grams, sugar has 401 calories.
Most of the calories in sugar come from carbohydrates (99%). Sugar is low in fat and high in sugar (100 g per 100 g). It has more calories per gram than 68% of the 455 sweets and desserts in our database.
Sugar Calorie Calculator
Your meal
Add portions from any food page to build a meal total. It stays in this browser.
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 cube of sugar?
1 cube of sugar (2 g) has 9 calories.
How many calories are in 100 grams of sugar?
100 grams of sugar has 401 calories, 0 g of protein, 0.3 g of fat and 100 g of carbohydrates.
How much protein is in sugar?
Sugar has 0 g of protein per 100 g. 1 cube of sugar gives you 0 g.
Is sugar high in calories?
Sugar has 401 calories per 100 g. It has more calories per gram than 68% of the 455 sweets and desserts in our database. A 2,000 calorie day fits about 499 g of it.
More about sugar
Amount for a target
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.