How much fiber is in black beans?
Black beans have 15 grams of fiber in 1 cup, cooked (172 grams), according to USDA FoodData Central. That is 54% of the Daily Value, which the FDA's label rules call high in fiber. Per 100 grams, black beans have 8.7 grams of fiber.
15gof fiber in 1 cup, cooked

60% of a 25 gram day
Fiber in black beans by serving size
| Serving | Weight | Fiber |
|---|---|---|
| 1 cup | 172g | 15g |
| 100 grams | 100g | 8.7g |
How black beans compare with other beans and legumes
Black beans rank 2 of 6 beans and legumes in this library, by fiber in one serving.
- Lentils15.6g
- Black beans15g
- Chickpeas12.5g
- Edamame8.1g
- Peanut butter1.6g
Each bar is one serving: lentils, 1 cup, cooked; black beans, 1 cup, cooked; chickpeas, 1 cup, cooked; edamame, 1 cup, shelled; peanut butter, 2 tablespoons.
Over half a day in a cup
A cup of cooked black beans has 15 grams of fiber, 60% of a 25 gram goal. Half a cup has 7.5.
The classic bowl
Half a cup of black beans on a cup of cooked brown rice is 10.7 grams of fiber. Add half an avocado and the bowl has 15.3.
More fiber alongside black beans
- Brown rice: 3.2 grams in 1 cup, cooked
- Avocado: 9.2 grams in 1 avocado
- Whole wheat bread: 1.9 grams in 1 slice
Not sure what your daily number should be? The fiber calculator works it out from your age and sex.
Questions about fiber in black beans
- How much fiber is in black beans?
- Black beans have 15 grams of fiber in 1 cup, cooked, which weighs 172 grams. The number comes from USDA FoodData Central.
- Are black beans high in fiber?
- One serving, 1 cup, cooked, has 15 grams. That is 54% of the Daily Value, which the FDA's label rules call high in fiber. Black beans rank 2 of 6 beans and legumes in this library by fiber per serving.
- How much fiber is in 100 grams of black beans?
- 8.7 grams of fiber per 100 grams. The largest size USDA lists, 1 cup, weighs 172 grams and has 15 grams of fiber.
- How many cups of black beans would it take to reach 25 grams of fiber?
- About 1.7, at 15 grams each. Most people reach 25 grams by mixing several foods across the day.
Source: USDA FoodData Central, Beans, black, mature seeds, cooked, boiled, without salt, retrieved October 8, 2026. Label terms follow the FDA's 28 gram Daily Value for fiber.