How much fiber is in white bread?
White bread has 0.8 grams of fiber in 1 slice (29 grams), according to USDA FoodData Central. That is 3% of the Daily Value, below the 10% the FDA requires before a label can call a food a good source of fiber. Per 100 grams, white bread has 2.7 grams of fiber.
0.8gof fiber in 1 slice
3% of a 25 gram day
Fiber in white bread by serving size
| Serving | Weight | Fiber |
|---|---|---|
| 1 slice thin, crust not eaten | 9g | 0.2g |
| 1 slice crust not eaten | 12g | 0.3g |
| 1 slice, very thin | 15g | 0.4g |
| 1 slice, thin | 20g | 0.5g |
| 1 slice | 25g | 0.7g |
| 1 oz | 28.4g | 0.8g |
| 1 slice | 29g | 0.8g |
| 1 slice, large | 30g | 0.8g |
| 1 cup, cubes | 35g | 0.9g |
| 1 cup, crumbs | 45g | 1.2g |
| 100 grams | 100g | 2.7g |
How white bread compares with other grains
White bread ranks 7 of 8 grains in this library, by fiber in one serving.
- Pasta2.2g
- Whole wheat bread1.9g
- Popcorn1.2g
- White bread0.8g
- White rice0.6g
Each bar is one serving: pasta, 1 cup spaghetti, cooked; whole wheat bread, 1 slice; popcorn, 1 cup, air-popped; white bread, 1 slice; white rice, 1 cup, cooked.
Under a gram a slice
A slice of white bread has 0.8 grams of fiber. A slice of whole wheat bread has 1.9.
What a swap is worth
A sandwich on two slices of white bread starts at 1.6 grams. The same sandwich on whole wheat starts at 3.8.
More fiber alongside white bread
- Black beans: 15 grams in 1 cup, cooked
- Lentils: 15.6 grams in 1 cup, cooked
- Broccoli: 2.4 grams in 1 cup, chopped
Not sure what your daily number should be? The fiber calculator works it out from your age and sex.
Questions about fiber in white bread
- How much fiber is in white bread?
- White bread has 0.8 grams of fiber in 1 slice, which weighs 29 grams. The number comes from USDA FoodData Central.
- Is white bread high in fiber?
- One serving, 1 slice, has 0.8 grams. That is 3% of the Daily Value, below the 10% the FDA requires before a label can call a food a good source of fiber. White bread ranks 7 of 8 grains in this library by fiber per serving.
- How much fiber is in 100 grams of white bread?
- 2.7 grams of fiber per 100 grams. The largest size USDA lists, 1 cup, crumbs, weighs 45 grams and has 1.2 grams of fiber.
- How many slices of white bread would it take to reach 25 grams of fiber?
- About 31.3, at 0.8 grams each. Most people reach 25 grams by mixing several foods across the day.
Track your fiber intake with Grove
Search real foods, hit your daily goal, and build a gut health habit. On iPhone, iOS 18.0 or later.
Source: USDA FoodData Central, Bread, white, commercially prepared (includes soft bread crumbs), retrieved October 8, 2026. Label terms follow the FDA's 28 gram Daily Value for fiber.