A typical serving of white bread (1 slice, 29 g) has about 77 calories. Per 100 g: 266 kcal, 8.9 g protein, 49.4 g carbs, 3.3 g fat. The same 100 g carries 2.7 g of fiber and 5.7 g of sugar. Most of the energy comes from carbohydrate.
| Serving | Weight | Calories |
|---|---|---|
| 1 slice | 29 g | 77 kcal |
| 1 slice crust not eaten | 12 g | 32 kcal |
| 1 slice, thin | 20 g | 53 kcal |
| 1 slice, very thin | 15 g | 40 kcal |
| 100 g | 100 g | 266 kcal |
A standard slice is about 75 calories; sandwich math starts at two. On the energy-density scale, 266 kcal per 100 g puts white bread at the high end.
A typical serving (1 slice, 29 g) has about 77 calories, and 100 g has 266 kcal. Calories scale with weight, so double the portion means double the number.
There are 8.9 g of protein in 100 g of white bread, which works out to about 2.6 g per serving (1 slice). Treat it as an energy source rather than a protein source.
There are 49.4 g of carbohydrate per 100 g of white bread, or about 14 g in 1 slice (29 g).
Every value on this page comes from USDA FoodData Central, entry 174924 (SR Legacy). Serving figures are converted from the per-100-g data, so rounding can shift a total by a calorie or two.
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Get JoulesA note on accuracy: calculators like this one provide estimates based on population-level formulas — your real needs vary with genetics, muscle mass, medical conditions, and more. Results are for information only and are not medical advice, a diagnosis, or a prescription. Talk to a doctor or registered dietitian before making significant changes to your diet or exercise, especially if you have a health condition, are pregnant, or are under 18.
Nutrition data: USDA FoodData Central, FDC ID 174924 (SR Legacy). Serving calories are computed from the per-100-g values.
