Carbs in Cornstarch
Cornstarch (per 100 g) contains 91.3g total carbs, 90.4g net carbs, 0.1g fat, 0.3g protein, and 381 calories.
Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian
90.4g
Net carbs
91.3g
Total carbs
0.9g
Fiber
0.3g
Protein
0.1g
Fat
381
Calories
Values per 100 g.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 90.4g | 91.3g | 0.3g | 381 |
| 1 oz (28 g) | 25.3g | 25.6g | 0.1g | 107 |
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 381 |
| Total carbs | 91.3g |
| Net carbs | 90.4g |
| Fiber | 0.9g |
| Sugar | 0g |
| Sugar alcohols | 0g |
| Protein | 0.3g |
| Fat | 0.1g |
| Sodium | 9mg |
| Potassium | 3mg |
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 cornstarch?
- Cornstarch has 91.3g of total carbs and 90.4g of net carbs per 100 grams.
- How many net carbs are in cornstarch?
- Cornstarch has 90.4g of net carbs per 100 grams (total carbs 91.3g minus 0.9g fiber).
- Is cornstarch keto-friendly?
- Cornstarch has 90.4g 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 cornstarch?
- Cornstarch has 381 calories per 100 grams.
