Nutrition facts · USDA data

Calories in White bread

77 calories in 1 slice (29 g) (266 kcal per 100 g)

White bread has 77 calories per 1 slice (29 g). Use this quick USDA-sourced reference for calories and macros, then log the real meal in TrueCal when portions change.

Nutrition facts

Nutrient Per serving Per 100 g
Calories 77 kcal 266 kcal
Protein 2.6 g 8.85 g
Carbs 14.3 g 49.4 g
Fat 1 g 3.33 g
Fiber 0.8 g 2.7 g
Sugar 1.6 g 5.67 g
Sodium 142.1 mg 490 mg

Macro calorie breakdown

Using the common 4 kcal per gram for protein, 4 kcal per gram for carbs, and 9 kcal per gram for fat convention, the 1 slice (29 g) serving breaks into these macro-derived calorie shares.

  • Protein: 2.6 g, about 10.4 kcal, or 13.6% of macro-derived calories.
  • Carbs: 14.3 g, about 57.2 kcal, or 74.7% of macro-derived calories.
  • Fat: 1 g, about 9 kcal, or 11.7% of macro-derived calories.

That equals 3.4 g protein per 100 calories for this serving.

Serving and 100 g context

The labeled serving is 29 g, which is 0.29 times the 100 g reference amount. That serving lists 77 calories, while the 100 g reference lists 266 kcal.

For macros, the same serving shows 2.6 g protein, 14.3 g carbs, and 1 g fat. The 100 g reference shows 8.85 g protein, 49.4 g carbs, and 3.33 g fat.

Other measured nutrients

Fiber is 0.8 g per 1 slice (29 g) and 2.7 g per 100 g in the USDA data.

Sugar is 1.6 g per 1 slice (29 g) and 5.67 g per 100 g in the USDA data.

Sodium is 142.1 mg per 1 slice (29 g) and 490 mg per 100 g in the USDA data.

Tracking calories in White bread

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Data: USDA FoodData Central — Bread, white, commercially prepared (includes soft bread crumbs)