White bread nutrition facts
Grains & starches · Commercial, baked · per 100 g
White bread (commercial, baked) contains 270 kcal per 100 g, with 9.4 g protein, 49.2 g carbohydrate (of which 5.7 g sugar), 3.3 g fat and 2.3 g fiber. That works out to about 3.5 g of protein per 100 kcal, and its energy density is moderate (150–300 kcal/100 g).
Source: USDA FoodData Central. Data as of June 2026.
Nutrition facts per 100 g
| Nutrient | Per 100 g |
|---|---|
| Calories | 270 kcal |
| Protein | 9.4 g |
| Carbohydrate | 49.2 g |
| Fat | 3.3 g |
| Fiber | 2.3 g |
| Sugar | 5.7 g |
| Sodium | 490 mg |
| Iron | 3.6 mg |
Source: USDA FoodData Central. Data as of June 2026.
What the numbers mean
Energy density tells you how many calories a food packs per gram: white bread is moderate (150–300 kcal/100 g). Protein density — grams of protein per 100 kcal — is a useful way to compare foods regardless of portion size; here it is about 3.5 g/100 kcal. Fiber (2.3 g per 100 g) supports digestion and satiety, while the sugar figure (5.7 g) is part of total carbohydrate. See our guide on how to read nutrition data for more.
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Frequently asked questions
How many calories are in 100 g of white bread?
100 g of white bread (commercial, baked) contains about 270 kcal, with 9.4 g protein, 49.2 g carbohydrate and 3.3 g fat, per USDA FoodData Central.
How much protein is in white bread?
White bread provides 9.4 g of protein per 100 g — roughly 3.5 g of protein per 100 kcal.
Is white bread high or low in calories?
At 270 kcal per 100 g, white bread has moderate (150–300 kcal/100 g) energy density.
Source
Data from USDA FoodData Central (FDC ID 172686), per 100 g edible portion. Values are for general information only and are not medical or dietary advice; cooking, brand and variety can change the real figures.
Last updated: 2026-06-14