FOOD CALORIES · GRAINS & STARCHES

Calories in whole-wheat bread

A slice of whole-wheat bread (32 g) has about 81 calories, with 4 g protein, 13.7 g carbohydrate, and 1.1 g fat.

USDA FoodData Central · Bread, whole-wheat, commercially prepared · Updated September 30, 2026

Calories in common portions

Whole-wheat bread: calories and macros by portion
PortionWeightCaloriesProteinCarbsFat
1 oz28.4 g713.5 g12.1 g1 g
1 slice32 g814 g13.7 g1.1 g
100 g100 g25212.5 g42.7 g3.5 g

Where the calories come from

Protein 19.8%Carbohydrate 67.8%Fat 12.5%

Shares use 4 calories per gram for protein and carbohydrate and 9 for fat, so they may not match USDA’s calorie total exactly. Try the macro calculator.

Good to know

  • Slice weight varies from loaf to loaf. For packaged bread, the label’s serving size and weight are the best match.
  • A 32 g slice has about 145.6 mg of sodium and 1.9 g of fiber.

Compare per 100 g

Whole-wheat bread compared with similar foods, per 100 g
FoodCaloriesProteinCarbsFat
Whole-wheat bread (this page)25212.5 g42.7 g3.5 g
White rice1302.7 g28.2 g0.3 g
Brown rice1232.7 g25.6 g1 g
Oats37913.2 g67.7 g6.5 g
Pasta1585.8 g30.9 g0.9 g

Source

USDA FoodData Central, SR Legacy (April 2019): Bread, whole-wheat, commercially prepared (FDC ID 172688) ↗. Values are per 100 g of edible portion; Calorify scaled them to each portion and rounded the results.

General education, not individualized nutrition advice. Read our editorial approach.

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