Italian bread serving size and weights
Here a serving of Italian bread is counted as 1 slice, which USDA weighs at 1 oz (29 g), with 75 calories and 2.8 g protein.
Serving sizes of Italian bread
Every household measure USDA weighs for this food, plus 1 oz and 100 g.
| Measure | Weight | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 1 slice | 1 oz (29 g) | 75 calories | 2.8 g | 14 g | 0.79 g |
| 1 oz | 1 oz (28 g) | 73 calories | 2.7 g | 13.6 g | 0.77 g |
| 100 g | 3.5 oz (100 g) | 259 calories | 9.5 g | 48.1 g | 2.7 g |
What 3.5 oz (100 g) of italian bread looks like
3.5 oz (100 g) of Italian bread is 3.5 oz, or about 3 1/2 slices. It has 259 calories, 9.5 g protein, 48.1 g carbs and 2.7 g fat. One slice weighs 1 oz (29 g).
How much italian bread for 30 g of protein
There is 9.5 g of protein in 3.5 oz (100 g) of Italian bread, so 30 g of protein would take 11.2 oz (316 g), with 819 calories. It is not a practical way to reach a protein target.
Keep exploring
Sources
Weights and nutrition: USDA FoodData Central, food portions and nutrients (FoodData Central, April 2026 release, accessed 2026-10-14)
- Italian bread: Bread, Italian, FDC ID 174913 (SR Legacy, published 2019-04-01) · full nutrition facts
- Kitchen measures (1 cup = 16 tbsp, 1 tbsp = 3 tsp): NDSU Extension, Ingredient Substitutions (FN198, J. Garden-Robinson, April 2013 edition). https://www.extension.purdue.edu/extmedia/HHS/HHS-784-W.pdf (accessed 2026-10-12)
How we calculate: each household measure is the gram weight USDA lists for this food. Calories and nutrients are the USDA values per 3.5 oz (100 g) scaled to that weight. 1 oz = 28.35 g and 1 lb = 453.6 g. Cup fractions are rounded to the nearest kitchen measure. A dash (—) means USDA reports no value. How we verify.