How much fiber is in corn?
Corn has 2.5 grams of fiber in 1 medium ear, cooked (103 grams), according to USDA FoodData Central. That is 9% 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, corn has 2.4 grams of fiber.
2.5gof fiber in 1 medium ear, cooked
10% of a 25 gram day
Fiber in corn by serving size
| Serving | Weight | Fiber |
|---|---|---|
| 1 baby ear | 8g | 0.2g |
| 1 ear small (5-1/2" to 6-1/2" long) | 89g | 2.1g |
| 1 ear medium (6-3/4" to 7-1/2" long) | 103g | 2.5g |
| 1 ear large (7-3/4" to 9" long) | 118g | 2.8g |
| 1 cup cut | 149g | 3.6g |
| 100 grams | 100g | 2.4g |
How corn compares with other vegetables
Corn ranks 4 of 13 vegetables in this library, by fiber in one serving.
- Potato3.8g
- Sweet potato3.8g
- Corn2.5g
- Broccoli2.4g
- Brussels sprouts2g
Each bar is one serving: potato, 1 medium potato, baked with skin; sweet potato, 1 medium sweet potato, baked; corn, 1 medium ear, cooked; broccoli, 1 cup, chopped; Brussels sprouts, 1/2 cup, cooked.
One ear is a modest amount
A medium ear of cooked corn has 2.5 grams of fiber. That puts it near a slice of whole wheat bread (1.9) and well under a cup of beans.
Corn and beans
The kernels from one ear mixed with half a cup of black beans is 10 grams of fiber.
More fiber alongside corn
- Chickpeas: 12.5 grams in 1 cup, cooked
- Quinoa: 5.2 grams in 1 cup, cooked
- Lentils: 15.6 grams in 1 cup, cooked
Not sure what your daily number should be? The fiber calculator works it out from your age and sex.
Questions about fiber in corn
- How much fiber is in corn?
- Corn has 2.5 grams of fiber in 1 medium ear, cooked, which weighs 103 grams. The number comes from USDA FoodData Central.
- Is corn high in fiber?
- One serving, 1 medium ear, cooked, has 2.5 grams. That is 9% of the Daily Value, below the 10% the FDA requires before a label can call a food a good source of fiber. Corn ranks 4 of 13 vegetables in this library by fiber per serving.
- How much fiber is in 100 grams of corn?
- 2.4 grams of fiber per 100 grams. The largest size USDA lists, 1 cup cut, weighs 149 grams and has 3.6 grams of fiber.
- How many ears of corn would it take to reach 25 grams of fiber?
- About 10, at 2.5 grams each. Most people reach 25 grams by mixing several foods across the day.
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Source: USDA FoodData Central, Corn, sweet, yellow, cooked, boiled, drained, without salt, retrieved October 8, 2026. Label terms follow the FDA's 28 gram Daily Value for fiber.