Calories in whole-wheat bread

USDA data · Updated October 12, 2026

Whole-wheat bread (1 slice, 32 g) has 81 calories, with 4 g of protein, 13.7 g of carbohydrates and 1.1 g of fat. Per 100 g, that's 252 kcal.

Values are for Bread, whole-wheat, commercially prepared. Amounts vary with size, variety and preparation.

Whole-wheat bread

Per 1 slice (32 g)


Calories81

Protein4 g
Carbohydrates13.7 g
   Fiber1.9 g
   Sugars1.4 g
Fat1.1 g
Sodium146 mg

Source: USDA FoodData Central.

Calories in whole-wheat bread by serving

ServingWeightCaloriesProteinCarbsFat
100 g100 g25212.4 g42.7 g3.5 g
1 slice32 g814 g13.7 g1.1 g
1 oz28 g713.5 g12.1 g1 g

Where the calories come from

Protein 20%Carbs 68%Fat 12%

Whole-wheat bread has a medium energy density (2.5 kcal per gram). It provides 4.9 g of protein per 100 kcal.

Bread, rice & grains: calories compared

Per 100 gCaloriesProteinCarbsFat
Oatmeal712.5 g12 g1.5 g
Couscous1123.8 g23.2 g0.2 g
Quinoa1204.4 g21.3 g1.9 g
Brown rice1232.7 g25.6 g1 g
White rice1302.7 g28.2 g0.3 g
Pasta (cooked)1585.8 g30.9 g0.9 g
English muffin2357.7 g46 g1.8 g
Whole-wheat bread25212.4 g42.7 g3.5 g
Bagel26410.6 g52.4 g1.3 g
White bread2668.8 g49.4 g3.3 g
Flour tortilla3068.2 g49.4 g8 g
Rolled oats (dry)37913.2 g67.7 g6.5 g

Log it in seconds

In C for Calories, photograph your plate and whole-wheat bread is estimated along with everything else on it, or search for it and enter the amount in grams. For packaged versions, scan the barcode to use the label.

Source: U.S. Department of Agriculture, Agricultural Research Service. FoodData Central, SR Legacy, FDC ID 172688. Calories are rounded to the nearest whole number and nutrients to one decimal place.

FAQ

Frequently asked questions

How many calories are in whole-wheat bread?

81 calories in 1 slice (32 g), or 252 calories per 100 g.

How much protein is in whole-wheat bread?

4 g of protein in 1 slice (32 g) (12.4 g per 100 g).

How many carbs are in whole-wheat bread?

13.7 g of carbohydrates in 1 slice (32 g), including 1.9 g of fiber.