Carbs in 1 Cup Tomatoes (chopped)
Keto-friendlyHow many carbs are in 1 cup tomatoes (chopped)?
1 Cup Tomatoes (chopped) — 1 cup, chopped (180g) — has 5g net carbs: 7.2g total carbs minus 2.2g fiber, plus 1.4g protein, 0.5g fat, and 36 calories. Per 100g that is 2.8g net carbs (4g total carbs, 1.2g fiber) and 20 calories. That makes 1 cup tomatoes (chopped) very low in net carbs and lower than the typical vegetable, which averages about 17.9g net carbs per 100g. With this carb count, 1 cup tomatoes (chopped) fits a keto or low-carb diet (usually 20–50g net carbs per day) in normal portions. Values are per per 100 g, sourced from USDA FoodData Central; net carbs are computed by CarbMeNot.
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Last updated September 8, 2026 · Compiled by the CarbMeNot Team
Values per 1 cup, chopped (180g); per 100 g: 2.8g net carbs, 20 cal. Net carbs = total carbs − fiber − sugar alcohols — do the math for any label with the free net carbs calculator.
Is 1 cup tomatoes (chopped) keto-friendly?
Yes — 1 cup tomatoes (chopped) is keto-friendly. 1 cup, chopped (180g) is 5g net carbs (7.2g total carbs − 2.2g fiber); per 100g that is 2.8g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other vegetables and meals.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1 cup, chopped | 5g | 7.2g | 1.4g | 36 |
| 100 g (3.5 oz) | 2.8g | 4g | 0.8g | 20 |
| 1 oz (28 g) | 0.8g | 1.1g | 0.2g | 6 |
How many calories are in 1 cup tomatoes (chopped)?
1 Cup Tomatoes (chopped) — 1 cup, chopped (180g) — has 36 calories, with 1.4g protein, 0.5g fat, and 5g net carbs. Per 100g: 20 calories and 2.8g net carbs.
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 1 cup tomatoes (chopped)?
- 1 Cup Tomatoes (chopped) (1 cup, chopped, 180g) has 7.2g of total carbs and 5g of net carbs. Per 100 grams: 4g total, 2.8g net.
- How many net carbs are in 1 cup tomatoes (chopped)?
- 1 Cup Tomatoes (chopped) has 5g of net carbs per 1 cup, chopped (180g) — 7.2g total carbs minus 2.2g fiber.
- Is 1 cup tomatoes (chopped) keto-friendly?
- Yes — 1 cup tomatoes (chopped) is keto-friendly. 1 cup, chopped (180g) is 5g net carbs (7.2g total carbs − 2.2g fiber); per 100g that is 2.8g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other vegetables and meals.
- How many calories are in 1 cup tomatoes (chopped)?
- 1 Cup Tomatoes (chopped) (1 cup, chopped, 180g) has 36 calories; that is 20 calories per 100 grams.
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CarbMeNot provides general nutrition information, not medical advice. Values are estimates — verify before relying on them for any health decision. See our Medical Disclaimer.