How much fiber is in a tomato?
Tomatoes have 1.5 grams of fiber in 1 medium tomato (123 grams), according to USDA FoodData Central. That is 5% 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, tomatoes have 1.2 grams of fiber.
1.5gof fiber in 1 medium tomato
6% of a 25 gram day
Fiber in tomatoes by serving size
| Serving | Weight | Fiber |
|---|---|---|
| 1 slice, thin/small | 15g | 0.2g |
| 1 cherry | 17g | 0.2g |
| 1 slice, medium (1/4" thick) | 20g | 0.2g |
| 1 slice, thick/large (1/2" thick) | 27g | 0.3g |
| 1 wedge (1/4 of medium tomato) | 31g | 0.4g |
| 1 Italian tomato | 62g | 0.7g |
| 1 plum tomato | 62g | 0.7g |
| 1 small whole (2-2/5" dia) | 91g | 1.1g |
| 1 medium whole (2-3/5" dia) | 123g | 1.5g |
| 1 cup cherry tomatoes | 149g | 1.8g |
| 1 cup, chopped or sliced | 180g | 2.2g |
| 1 large whole (3" dia) | 182g | 2.2g |
| 100 grams | 100g | 1.2g |
How tomatoes compare with other vegetables
Tomatoes rank 9 of 13 vegetables in this library, by fiber in one serving.
Each bar is one serving: onion, 1 medium onion; carrot, 1 medium carrot; tomato, 1 medium tomato; kale, 1 cup, raw; spinach, 1 cup, raw.
A little, in a lot of meals
A medium tomato has 1.5 grams of fiber. It is not much on its own, but tomatoes show up in many meals across a week.
In a sandwich
A sliced tomato on two slices of whole wheat bread with half an avocado is 9.9 grams of fiber.
More fiber alongside tomatoes
- 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 tomatoes
- How much fiber is in a tomato?
- Tomatoes have 1.5 grams of fiber in 1 medium tomato, which weighs 123 grams. The number comes from USDA FoodData Central.
- Are tomatoes high in fiber?
- One serving, 1 medium tomato, has 1.5 grams. That is 5% of the Daily Value, below the 10% the FDA requires before a label can call a food a good source of fiber. Tomatoes rank 9 of 13 vegetables in this library by fiber per serving.
- How much fiber is in 100 grams of tomatoes?
- 1.2 grams of fiber per 100 grams. The largest size USDA lists, 1 large whole (3" dia), weighs 182 grams and has 2.2 grams of fiber.
- How many tomatoes would it take to reach 25 grams of fiber?
- About 16.7, at 1.5 grams each. Most people reach 25 grams by mixing several foods across the day.
Track your fiber intake with Grove
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Source: USDA FoodData Central, Tomatoes, red, ripe, raw, year round average, retrieved October 8, 2026. Label terms follow the FDA's 28 gram Daily Value for fiber.