How much fiber is in blackberries?
Blackberries have 7.6 grams of fiber in 1 cup (144 grams), according to USDA FoodData Central. That is 27% of the Daily Value, which the FDA's label rules call high in fiber. Per 100 grams, blackberries have 5.3 grams of fiber.
7.6gof fiber in 1 cup
30% of a 25 gram day
Fiber in blackberries by serving size
| Serving | Weight | Fiber |
|---|---|---|
| 1 cup | 144g | 7.6g |
| 100 grams | 100g | 5.3g |
How blackberries compare with other fruits
Blackberries rank 3 of 17 fruits in this library, by fiber in one serving.
- Avocado9.2g
- Raspberries8g
- Blackberries7.6g
- Pear5.5g
- Apple4.4g
Each bar is one serving: avocado, 1 avocado; raspberries, 1 cup; blackberries, 1 cup; pear, 1 medium pear; apple, 1 medium apple, with skin.
Up there with raspberries
A cup of blackberries has 7.6 grams of fiber. A cup of raspberries has 8, and a cup of blueberries has 3.6. Among the berries here, only raspberries beat it.
A bowl that does real work
A cup of blackberries over a cup of cooked oatmeal is 11.6 grams of fiber, 46% of a 25 gram day before lunch.
More fiber alongside blackberries
- Chia seeds: 9.8 grams in 1 ounce (about 2 tablespoons)
- Oatmeal: 4 grams in 1 cup, cooked
- Almonds: 3.5 grams in 1 ounce (about 23 almonds)
Not sure what your daily number should be? The fiber calculator works it out from your age and sex. For a longer list to shop from, see 50 high-fiber foods ranked by fiber.
Questions about fiber in blackberries
- How much fiber is in blackberries?
- Blackberries have 7.6 grams of fiber in 1 cup, which weighs 144 grams. The number comes from USDA FoodData Central.
- Are blackberries high in fiber?
- One serving, 1 cup, has 7.6 grams. That is 27% of the Daily Value, which the FDA's label rules call high in fiber. Blackberries rank 3 of 17 fruits in this library by fiber per serving.
- How much fiber is in 100 grams of blackberries?
- 5.3 grams of fiber per 100 grams. The largest size USDA lists, 1 cup, weighs 144 grams and has 7.6 grams of fiber.
- How many cups of blackberries would it take to reach 25 grams of fiber?
- About 3.3, at 7.6 grams each. Most people reach 25 grams by mixing several foods across the day.
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Source: USDA FoodData Central, Blackberries, raw, retrieved November 5, 2026. Label terms follow the FDA's 28 gram Daily Value for fiber.