White bread Nutrition
Calories in white bread100 g of white bread has 265 kcal.
| Per | 100 g | 1 slice (30 g) |
|---|---|---|
| Energy (kcal) | 265 | 79.5 |
| Protein (g) | 9 | 2.7 |
| Carbohydrates (g) | 49 | 14.7 |
| Fat (g) | 3.2 | 1 |
| Fibre (g) | 2.7 | 0.8 |
How we got the portion numbers
- The reference values are per 100 g. A portion of 30 g scales by 30 ÷ 100 = 0.3.
- Energy: 265 × 0.3 = 79.5 kcal — the same factor gives every other row in the portion column.
Check it backwards
79.5 kcal ÷ 0.3 = 265 kcal per 100 g — the reference value we started with.
Questions people also ask
How many calories are in white bread?
100 g has 265 kcal. 1 slice (30 g) has about 80 kcal.
How much protein is in white bread?
9 g per 100 g, so 1 slice gives about 2.7 g.
Where do these values come from?
USDA FoodData Central reference entries, rounded. They are typical values — the exact food on your plate varies with variety, ripeness and cooking, so the page says 'about' where it scales a portion.