Carbs in Popcorn
Popcorn (per 100 g) contains 21.2g total carbs, 20.2g net carbs, 21.7g fat, 17.7g protein, and 351 calories.
Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian
20.2g
Net carbs
21.2g
Total carbs
1g
Fiber
17.7g
Protein
21.7g
Fat
351
Calories
Values per 100 g.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 20.2g | 21.2g | 17.7g | 351 |
| 1 oz (28 g) | 5.7g | 5.9g | 5g | 98 |
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 351 |
| Total carbs | 21.2g |
| Net carbs | 20.2g |
| Fiber | 1g |
| Sugar | 0g |
| Sugar alcohols | 0g |
| Protein | 17.7g |
| Fat | 21.7g |
| Sodium | 1140mg |
| Potassium | 288mg |
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 popcorn?
- Popcorn has 21.2g of total carbs and 20.2g of net carbs per 100 grams.
- How many net carbs are in popcorn?
- Popcorn has 20.2g of net carbs per 100 grams (total carbs 21.2g minus 1g fiber).
- Is popcorn keto-friendly?
- Popcorn has 20.2g 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 popcorn?
- Popcorn has 351 calories per 100 grams.
