Carbs in Tomatoes 1 Cup
Keto-friendlyTomatoes 1 Cup (per 100 g) contains 4g total carbs, 2.8g net carbs, 0.3g fat, 0.8g protein, and 20 calories.
Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian
2.8g
Net carbs
4g
Total carbs
1.2g
Fiber
0.8g
Protein
0.3g
Fat
20
Calories
Values per 100 g.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 2.8g | 4g | 0.8g | 20 |
| 1 oz (28 g) | 0.8g | 1.1g | 0.2g | 6 |
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 20 |
| Total carbs | 4g |
| Net carbs | 2.8g |
| Fiber | 1.2g |
| Sugar | 2.6g |
| Sugar alcohols | 0g |
| Protein | 0.8g |
| Fat | 0.3g |
| Sodium | 4mg |
| Potassium | 226mg |
Source: USDA FoodData Central (Survey (FNDDS)). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in tomatoes 1 cup?
- Tomatoes 1 Cup has 4g of total carbs and 2.8g of net carbs per 100 grams.
- How many net carbs are in tomatoes 1 cup?
- Tomatoes 1 Cup has 2.8g of net carbs per 100 grams (total carbs 4g minus 1.2g fiber).
- Is tomatoes 1 cup keto-friendly?
- Yes — with 2.8g net carbs per 100g, tomatoes 1 cup fits a ketogenic diet in normal portions.
- How many calories are in tomatoes 1 cup?
- Tomatoes 1 Cup has 20 calories per 100 grams.
