How Many Calories in a Slice of Bread?
About 80 kcal in a standard sandwich slice. Variety matters less than thickness.
A standard slice of sandwich bread is about 80 kcal. Whole wheat, white, sourdough, and multigrain at typical thickness are all within ~10 kcal of each other. Thick-cut, brioche, and artisan slices run 100–140 kcal — sometimes more. The bread itself is rarely the calorie problem; what you put on it usually is.
The Headline Numbers
| Type | Typical slice (28g) | Calories |
|---|---|---|
| White sandwich bread | 28 g | 75 |
| Whole wheat sandwich bread | 28 g | 80 |
| Multigrain | 28 g | 85 |
| Sourdough (sandwich slice) | 28 g | 85 |
| Rye | 28 g | 80 |
| Pumpernickel | 28 g | 80 |
| 100% whole grain | 30 g | 90 |
| Sprouted grain (Ezekiel-style) | 34 g | 80 |
| Thick-cut artisan | 50 g | 130–150 |
| Brioche slice | 35 g | 110 |
| Ciabatta slice | 60 g | 140 |
| Bagel (4 oz, plain) | 113 g | 270 |
| English muffin | 57 g | 130 |
| Hamburger bun | 50 g | 140 |
For most “regular bread” entries in your tracker, 80 kcal/slice is a defensible default.
Why “Whole Wheat vs White” Doesn’t Matter Calorically
Both are mostly flour. Both have similar carb counts. The differences:
| White | Whole Wheat | |
|---|---|---|
| Calories per slice | 75 | 80 |
| Fiber | 1 g | 2 g |
| Protein | 2 g | 3 g |
| B vitamins | Less (some added back) | More (naturally) |
| Glycemic load | Slightly higher | Slightly lower |
For weight loss specifically, both fit the same calorie math. Whole wheat is mildly better on fiber and micronutrients. White isn’t “bad” — it’s just slightly stripped down.
If you’re choosing for nutrition, whole wheat or sprouted grain wins. If you’re choosing for taste with a sandwich, eat what you like. The 5 kcal difference is rounding error.
”Reduced Calorie” Bread
Brands like Sara Lee 45-Calorie, Pepperidge Farm Light, etc. run 40–50 kcal per slice — about half a regular slice. Usually achieved by:
- Slicing thinner (~16 g vs 28 g)
- Adding extra fiber (resistant starch, wheat fiber)
- Using a slightly different formulation
Macros are similar to regular bread on a per-gram basis. If you eat one slice of “regular” or two slices of “light,” you’re at roughly the same calorie total. The light versions are useful if you want two slices for a sandwich without doubling the calories.
Bread in Sandwich Math
A “typical” sandwich isn’t just bread:
| Component | Calories |
|---|---|
| 2 slices bread | 160 |
| 2 tbsp mayonnaise | 190 |
| 4 oz turkey deli meat | 130 |
| 1 oz cheese | 110 |
| Lettuce + tomato | 10 |
| Mustard | 5 |
| Total | ~605 |
The bread is 26% of the calories. Mayo is 31%. If you’re trying to “cut calories from sandwiches,” cut the mayo first, then the cheese, then maybe go thinner on the bread.
Bread at Restaurants
| Item | Calories |
|---|---|
| Subway 6” Italian (bread only) | 200 |
| Subway 12” Italian (bread only) | 400 |
| Average bread roll at a restaurant | 130–180 |
| Olive Garden breadstick | 140 |
| Cheesecake Factory brown bread slice | 90 |
| Panera baguette (3 oz) | 220 |
| Average diner toast (2 slices, buttered) | 250 |
| Pita bread (6”) | 165 |
| Naan (1 piece) | 250–320 |
| Tortilla, flour 8” | 145 |
| Tortilla, corn 6” | 50 |
Restaurant bread baskets are sneaky. A pre-meal basket with 3 rolls + butter is easily 600 kcal before your entrée arrives.
What About Sourdough?
Sourdough is having a moment. Two real properties:
- Slower digestion. Fermentation creates organic acids that slow gastric emptying. Glycemic response is meaningfully lower than regular white bread.
- Possibly easier on digestion for some people sensitive to commercial bread.
What sourdough is not: lower calorie. A typical sourdough slice is 80–100 kcal — same range as everyone else.
Bread and Weight Loss
The “is bread bad for you” question comes up constantly. The honest answer:
- A few slices of bread per day is fine in any deficit
- A whole loaf of bread is not (300+ kcal/loaf, multiplied)
- The bread isn’t usually the issue; the bread plus what’s on it is
If you currently eat 4–6 slices of bread a day (sandwich + toast + sandwich), and you want to cut calories, drop one or two slices and you’ve cleaned up 80–160 kcal effortlessly. You don’t need to eliminate bread.
Common Logging Mistakes
Logging “1 slice bread = 80 kcal” without checking. Some artisan or thick-cut breads are 130–150 kcal/slice. If your slice is huge, weigh it.
Counting hamburger or hot dog buns as “bread.” They’re closer to 140–150 kcal each. Different category.
Forgetting toast butter. A “slice of toast” with 1 tsp butter is 80 + 35 = 115 kcal. Add it.
Logging panini or grilled cheese the same as plain sandwich. Pressing in butter or oil adds 50–100 kcal to a sandwich.
What to Take Away
- Standard slice of bread = ~80 kcal. Memorize this.
- Whole wheat vs white is essentially identical in calories.
- Specialty/thick breads can be 100–140 kcal per slice. Check.
- The sandwich math isn’t usually about the bread.
For more grain calories, see calories in pasta and calories in oatmeal.
Frequently Asked Questions
Is whole wheat bread lower in calories than white?
Barely. A typical slice of each is around 70–90 kcal. Whole wheat has more fiber and B vitamins; white has slightly less but isn't 'higher calorie' in any meaningful way.
How many calories in a bagel?
A typical 4-oz plain bagel is ~270 kcal — about three slices of bread worth. Bagels are dense, so they pack more calories per unit volume than sliced bread.
What about sourdough?
A typical slice of sourdough is 80–100 kcal — same range as other breads. Sourdough's appeal is the slower digestion and lower glycemic response, not lower calories.
Is bread bad for weight loss?
No. A 80-kcal slice of bread fits in any deficit. The problem is when 'a sandwich' means two slices + 2 tbsp mayo + 4 oz protein + cheese — that's 600 kcal, mostly from non-bread.
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