Carbs in Onion Soup
Onion Soup (per 100 g) contains 65.1g total carbs, 58.5g net carbs, 0.3g fat, 7.5g protein, and 293 calories.
Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian

58.5g
Net carbs
65.1g
Total carbs
6.6g
Fiber
7.5g
Protein
0.3g
Fat
293
Calories
Values per 100 g.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 58.5g | 65.1g | 7.5g | 293 |
| 1 oz (28 g) | 16.4g | 18.2g | 2.1g | 82 |
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 293 |
| Total carbs | 65.1g |
| Net carbs | 58.5g |
| Fiber | 6.6g |
| Sugar | 4.7g |
| Sugar alcohols | 0g |
| Protein | 7.5g |
| Fat | 0.3g |
| Sodium | 8030mg |
| Potassium | 721mg |
Source: USDA FoodData Central (SR Legacy). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in onion soup?
- Onion Soup has 65.1g of total carbs and 58.5g of net carbs per 100 grams.
- How many net carbs are in onion soup?
- Onion Soup has 58.5g of net carbs per 100 grams (total carbs 65.1g minus 6.6g fiber).
- Is onion soup keto-friendly?
- Onion Soup has 58.5g net carbs per 100g, which is high for keto. Enjoy it in small portions or save it for higher-carb days.
- How many calories are in onion soup?
- Onion Soup has 293 calories per 100 grams.



