How many carbs are in sugar?
1 cup of sugar contains about 199.2g of carbohydrate, 0g of protein, and 802 calories.
Carbs by portion size
| Portion | Total carbs | Fiber | Net carbs |
|---|---|---|---|
| 1 cup (200g) | 199.2g | 0g | 199.2g |
| 100 grams (100g) | 99.6g | 0g | 99.6g |
Net carbs in sugar
1 cup of sugar contains 199.2g of net carbs — total carbs (199.2g) minus dietary fiber (0g). Net carbs are the carbs your body actually digests and that raise blood glucose. See our guide to net carbs for how this calculation works and when to use it.
Full nutrition for sugar (per 100g)
- Calories: 401 kcal
- Carbohydrate: 99.6g
- Dietary fiber: 0g
- Sugars: 99.8g
- Protein: 0g
- Fat: 0.3g
Reference values from USDA FoodData Central (survey fndds dataset, fdcId 2345817). Values are per 100 grams.
Count carbs without typing
CarbZen scans any meal in 3 seconds with USDA-verified numbers. Three free scans every day, forever.
Download on the App StoreFrequently asked questions
How many carbs are in sugar?
1 cup of sugar contains about 199.2g of total carbohydrate. After subtracting 0g of fiber, the net carbs are about 199.2g.
How many net carbs are in sugar?
Net carbs in 1 cup of sugar are about 199.2g — that is total carbs (199.2g) minus dietary fiber (0g). See our net carbs explainer for the full calculation.
Is sugar good for diabetics?
Sugar contains carbohydrates that will raise blood glucose. Whether it fits your meal plan depends on the portion and your overall daily target. Most U.S. diabetes care teams use total carbs (not net) for insulin dosing — see our diabetes carb-counting guide.
Is sugar keto-friendly?
Whether sugar fits a keto plan depends on your daily net-carb budget (typically under 20–30g per day). One serving (1 cup) provides about 199.2g of net carbs.