How many calories are in a standard 1 regular slice (32g) of whole wheat bread?

A standard 1 regular slice (32g) (32g) of whole wheat bread contains 79 calories, with 3.8g protein, 13.2g carbs, and 1.1g fat according to USDA FoodData Central (FDC ID: 172688).

Is whole wheat bread good for a weight loss calorie deficit?

100% whole wheat bread loaf. Retains the grain bran and germ, delivering B-vitamins, iron, and slow-digesting dietary fiber. Its macronutrient ratio and micronutrient profile make it a verified whole food choice for structured energy balance.

grainsUSDA FDC ID: 172688(Triticum aestivum)

Whole Wheat Bread Calories & Nutrition Facts

Q: What is the calorie density of whole wheat bread per 100g?

Per 100 grams, whole wheat bread provides 247 kcal, 12g protein, 41.3g carbohydrates, and 6.8g dietary fiber.

Quick Answer: A standard 1 regular slice (32g) of whole wheat bread contains 79 calories. Per 100 grams, whole wheat bread provides 247 kcal, 12g protein, 41.3g carbohydrates, and 3.4g fat based on verified USDA FoodData Central records.

100% whole wheat bread loaf. Retains the grain bran and germ, delivering B-vitamins, iron, and slow-digesting dietary fiber. Use the interactive portion selector below to calculate exact calories and macronutrients for small, medium, large, or custom gram portions.

Interactive Portion Selector

Calculate Nutrition by Serving Size

grams

Calories

247kcal

per 100 grams (100g)

Protein

12g

19% of energy

Carbohydrates

41.3g

67% of energy

Total Fat

3.4g

12% of energy

Serving: 100 grams (100 grams)

Comprehensive Nutrition Facts (Per 100g)

Standard laboratory basis: 100 grams edible portion

100 g standard

Calories247 kcal

Total Fat3.4 g

Sodium446 mg

Potassium254 mg

Total Carbohydrate41.3 g

Dietary Fiber6.8 g

Total Sugars5.6 g

Protein12 g

Preparation & Cooking Variations

How different cooking methods affect caloric density and moisture content per 100g

Preparation Method	Calories / 100g	Protein	Carbs	Fat	Nutritional Impact
Fresh sliced	247 kcal	12g	41.3g	3.4g	Standard commercial slice
Toasted dry	260 kcal	12.6g	43.5g	3.6g	Slight moisture loss increases nominal density

Nutritional Comparison with Similar Foods

Direct evidence-based comparisons derived from verified database records

Whole Wheat Bread vs White Bread

View White Bread →

Whole wheat bread has 2.5x more fiber (6.8g vs 2.7g per 100g) and lower glycemic impact than white bread.

Verified Nutrition Data•Source: USDA FoodData Central(ID: 172688)

Verified: 2026-09-01|Provenance Policy|FDC Record ↗

Related grains Foods

Oats (Rolled, Dry)389 kcal / 100g White Bread265 kcal / 100g Plain Bagel250 kcal / 100g

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