Bread Macros: Complete Nutrition Facts & Calories

Reviewed by Sarah Chen, MS, RD

Sliced whole grain bread loaf - 9g protein, 43g carbs, 3g fat per 100g

Bread is a dietary staple that’s been unfairly demonized. Yes, it’s carb-dense. No, it won’t ruin your diet when eaten mindfully. The key is understanding bread macros—which vary significantly between types—and tracking accurately.

This guide breaks down bread macros completely: white vs. whole grain, specialty options, sandwich bread vs. bakery bread, and how to make bread fit any nutrition goal.

Sliced whole grain bread on a wooden cutting board

Bread Macros: Quick Reference

Here’s what you need to know for common bread types.

White Bread (Enriched)

ServingCaloriesProteinCarbsFatFiber
1 slice (30g)792.7g15g1g0.6g
2 slices (60g)1585.4g30g2g1.2g
100g2659g49g3.2g2.4g

Whole Wheat Bread

ServingCaloriesProteinCarbsFatFiber
1 slice (33g)814g14g1.1g2g
2 slices (66g)1628g28g2.2g4g
100g24712g43g3.4g6g

Sourdough Bread

ServingCaloriesProteinCarbsFatFiber
1 slice (36g)903.5g18g0.5g1g
2 slices (72g)1807g36g1g2g

Low-Carb/Keto Bread

ServingCaloriesProteinNet CarbsFatFiber
1 slice (~28g)35-503-5g1-4g1-3g3-5g
2 slices70-1006-10g2-8g2-6g6-10g

Key insight: A sandwich (2 slices) typically adds 150-180 calories and 28-36g carbs. The bread itself is rarely the calorie problem—it’s what goes on and in it.

Bread Types Compared

Per Slice (Average)

TypeCaloriesProteinCarbsFiberNotes
White792.7g15g0.6gMost common
Whole wheat814g14g2gMore fiber
Multigrain803.5g15g2gSeeds add nutrition
Rye832.7g16g2gDistinctive flavor
Sourdough903.5g18g1gFermented
Pumpernickel652g12g2gDense, dark
Brioche1303.5g15g0.5gButtery, sweet
Ciabatta1304g25g1gLarger, airier
Baguette (2” piece)1405g28g1gDense crust
Ezekiel/Sprouted804g15g3gSprouted grains

Why Whole Grain Is Better

White vs. Whole Wheat:

FactorWhiteWhole WheatDifference
Calories7981+2 (negligible)
Fiber0.6g2g+233%
Protein2.7g4g+48%
Glycemic IndexHigh (75)Moderate (69)Better for blood sugar

Real benefits of whole grain:

  • More fiber = more satiety
  • Lower blood sugar spikes
  • More vitamins and minerals
  • Feeling fuller longer

The catch: Calories are nearly identical. Whole grain isn’t a weight-loss solution—it’s a modest nutritional upgrade.

Comparison of white, whole wheat, and multigrain bread slices

The Slice Size Problem

Not all slices are created equal:

Slice Weight Variations

Bread TypeTypical Slice WeightCalories/Slice
Thin-sliced23-25g60-70
Regular28-32g75-90
Thick-sliced38-45g100-130
Artisan/bakery40-60g110-170
Hot dog/burger buns45-55g120-150
Bagel85-110g240-300

The tracking trap: Logging “1 slice bread” could mean 60 or 130 calories depending on the slice.

Fix: Check your bread’s nutrition label for the specific serving weight, or weigh slices directly.

Low-Carb and Keto Bread Options

For those limiting carbs, several options exist:

Commercial Low-Carb Breads

BrandCaloriesNet CarbsProteinNotes
Sola Bread351g3gWidely available
Franz Keto400g5gVery low carb
Aldi L’Oven Fresh Keto401g5gBudget option
Thin Slim Zero Carb450g7gOnline mainly
Dave’s Killer 21 Grain Thin609g5gNot keto, but lower
Carbonaut802g7gBetter texture

Low-Carb Bread Alternatives

AlternativeCaloriesNet CarbsNotes
Lettuce wrap50.5gZero bread texture
Cheese wrap900gGreat for keto
Egg wrap901gHigh protein
Cloud bread451gLight, airy
Coconut flour bread1003gHomemade option

Are Low-Carb Breads Worth It?

Pros:

  • 10-15g fewer carbs per slice
  • Allow sandwiches on keto
  • Satisfies bread cravings

Cons:

  • Often more expensive
  • Texture can be off (dense, gummy)
  • High in fiber (can cause digestive issues)
  • Some taste very different from bread

Verdict: If you’re strictly keto and miss sandwiches, they work. For moderate low-carb, regular bread in small portions might satisfy better.

Making Bread Work for Different Diets

Weight Loss/Cutting

Bread isn’t the enemy—portions and toppings are:

The math:

  • 2 slices bread = 160 calories
  • 2 tbsp butter = 204 calories
  • The butter has more calories than the bread!

Cutting-friendly sandwich:

IngredientCalories
2 slices whole wheat162
4 oz turkey breast120
Mustard5
Lettuce, tomato10
Total297

Calorie traps to avoid:

  • Mayo (2 tbsp = 180 cal)
  • Cheese (1 slice = 70-110 cal)
  • Butter (1 tbsp = 102 cal)
  • “Special sauce” (often 100+ cal)

Low-Carb Diet (Non-Keto)

On a moderate low-carb diet (50-100g carbs/day):

Bread ApproachCarbs
2 slices regular bread30g
2 slices low-carb bread4-10g
1 slice + open-face15g
Lettuce wrap0.5g

Strategy: Save bread carbs for when you really want them. One sandwich uses 30g carbs—about 30-50% of a moderate low-carb day.

High-Protein Diet

Regular bread has modest protein (~3g/slice). Boost it:

High-protein sandwich strategies:

IngredientProtein
2 slices Ezekiel bread8g
4 oz chicken breast35g
1 oz cheese7g
Total50g

Protein-enhanced breads:

  • Ezekiel/Sprouted: 4-5g per slice
  • Dave’s Killer: 5g per slice
  • P28 Protein Bread: 14g per slice (specialty)

Keto/Strict Low-Carb

Regular bread doesn’t fit strict keto. Options:

  1. Low-carb breads: 0-4g net carbs per slice
  2. Alternatives: Lettuce wraps, cheese wraps, cloud bread
  3. Skip it: Not every meal needs bread

Keto sandwich:

IngredientCaloriesNet Carbs
2 slices Sola bread702g
3 oz ham901g
1 oz cheese1100g
Mayo (1 tbsp)900g
Total3603g

Specialty Breads Macros

Bakery and Artisan Breads

TypeServingCaloriesCarbs
French bread (2” slice)40g11021g
Italian loaf (2” slice)40g10520g
Focaccia (3x3” piece)60g17026g
Ciabatta roll85g22044g
Croissant60g27026g
Pretzel roll85g23046g

Breakfast Breads

TypeServingCaloriesCarbsNotes
Bagel (medium)95g27053gDeceptively calorie-dense
English muffin57g13025gBetter portion control
Toast (white)30g7915gSame as untoasted
Waffle (frozen)35g9515gOften lower than expected
Pancake (4” diameter)40g9015gSimilar to bread

The Bagel Problem

Bagels deserve special attention:

Bagel vs. Bread:

2 Slices Bread1 Bagel
Weight60g95-110g
Calories160270-300
Carbs30g53-58g

One bagel equals nearly 4 slices of bread. If you love bagels, consider:

  • Bagel thins (110 calories)
  • Scooping out the middle
  • Eating half
  • Tracking accurately

Meal Ideas with Bread

Healthy Sandwich Formulas

The 400-calorie sandwich:

ComponentCalories
2 slices whole wheat162
Lean protein (3-4 oz)100-150
Vegetables (unlimited)20
Light spread (mustard, hummus)20-50
Total~400

Protein-packed turkey wrap (using bread):

IngredientCaloriesProtein
1 large tortilla1404g
4 oz turkey12024g
2 tbsp hummus502g
Vegetables201g
Total33031g

Toast Combinations

Avocado toast (realistic):

IngredientCalories
1 slice whole wheat81
1/4 avocado80
Salt, pepper, chili flakes0
Total161

Add an egg (+70 cal) for more protein.

PB toast:

IngredientCaloriesProtein
1 slice whole wheat814g
1 tbsp peanut butter944g
Total1758g

Avocado toast with egg on sourdough bread

Bread Meal Prep Tips

Freezing Bread

Bread freezes extremely well:

  1. Separate slices with parchment (optional)
  2. Place in freezer bag, remove air
  3. Freeze up to 3 months
  4. Toast directly from frozen

Why freeze: Prevents mold/staleness, allows bulk buying, always available.

Pre-Made Sandwiches

Prep ahead:

  • Make sandwiches 1-2 days ahead
  • Store in fridge (not freezer)
  • Avoid wet ingredients (tomato, lettuce) until eating
  • Pack those separately

Storage Guidelines

TypeRoom TemperatureRefrigeratorFreezer
Commercial bread5-7 daysNot recommended*3 months
Homemade bread3-4 days7 days3 months
Low-carb breadCheck labelOften required2 months

*Refrigerating bread can make it stale faster (starch retrogradation)

Common Bread Tracking Mistakes

Mistake #1: Ignoring Slice Size Variation

“1 slice bread” can mean 60-130 calories.

Fix: Check your bread’s label for slice weight. Weigh if unsure.

Mistake #2: Forgetting Spreads and Toppings

The bread: 80 calories The butter, mayo, cheese: 300+ calories

Fix: Track EVERYTHING on the bread, not just the bread.

Mistake #3: Underestimating Bakery Bread

That thick artisan slice is probably 120-150 calories, not the 80 you logged.

Fix: Weigh bakery bread or estimate conservatively.

Mistake #4: “Healthy Bread” = Fewer Calories

Whole wheat, multigrain, and “ancient grain” breads have the same (or slightly more) calories as white bread.

Fix: Choose whole grain for fiber and satiety, not calorie savings.

Mistake #5: The Bagel Blind Spot

Treating a bagel like “bread” when it’s 3x the calories.

Fix: Know that one bagel = nearly 4 slices of bread.

The Bottom Line

Bread is a straightforward carb source:

  • 79-90 calories per slice — Most regular bread
  • 14-18g carbs per slice — Adds up in sandwiches
  • 2-4g protein per slice — Modest contribution
  • Whole grain advantage: More fiber, not fewer calories

Key tracking rules:

  1. Check slice weight on YOUR bread’s label
  2. Track all spreads and toppings
  3. Bagels = 3-4 slices worth of bread
  4. Low-carb bread works for keto; not needed otherwise

Bread can fit any diet when portioned and tracked accurately. The villain isn’t bread itself—it’s the butter, mayo, cheese, and oversized portions that often accompany it.

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Jessica Williams
Jessica Williams, CPT, CSCS

Jessica Williams is a certified personal trainer and strength coach who has helped hundreds of clients transform their bodies through smart training and nutrition. She specializes in helping beginners navigate macro tracking and sustainable fitness practices that fit real life.

View all articles by Jessica →

Note: Nutrition values are approximate and may vary based on preparation method and source.