Microwave Popcorn Bag Calories & Carbs
Last updated September 8, 2026 · Compiled by the CarbMeNot Team
Values per 1 bag popped (87g); per 100 g: 41.4g net carbs, 488 cal. Net carbs = total carbs − fiber − sugar alcohols — do the math for any label with the free net carbs calculator.
How many carbs are in microwave popcorn bag?
Microwave Popcorn Bag — 1 bag popped (87g) — has 36g net carbs: 43g total carbs minus 7g fiber, plus 5g protein, 30g fat, and 425 calories. Per 100g that is 41.4g net carbs (49.4g total carbs, 8g fiber) and 488 calories. That makes microwave popcorn bag high in net carbs and about average for the typical snacks and sweet, which averages about 55.0g net carbs per 100g. At this carb count, microwave popcorn bag is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.
Is microwave popcorn bag keto-friendly?
Microwave Popcorn Bag is generally not keto-friendly. 1 bag popped (87g) is 36g net carbs (43g total carbs − 7g fiber); per 100g that is 41.4g net carbs. On a standard keto diet (20–50g net carbs per day), even one serving uses a large share of your daily carbs, so keep portions small or save it for a higher-carb day.
Keeping an eye on carbs in microwave popcorn bag?
Microwave Popcorn Bag runs higher in carbs, so portions matter. CarbMeNot tracks every gram from a photo, so you stay under your daily limit without the math.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1 bag popped | 36g | 43g | 5g | 425 |
| 100 g (3.5 oz) | 41.4g | 49.4g | 5.7g | 488 |
| 1 oz (28 g) | 11.6g | 13.8g | 1.6g | 137 |
How many calories are in microwave popcorn bag?
Microwave Popcorn Bag — 1 bag popped (87g) — has 425 calories, with 5g protein, 30g fat, and 36g net carbs. Per 100g: 488 calories and 41.4g net carbs.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 488 |
| Total carbs | 49.4g |
| Net carbs | 41.4g |
| Fiber | 8g |
| Sugar | 0g |
| Sugar alcohols | 0g |
| Protein | 5.7g |
| Fat | 34.5g |
| Sodium | 920mg |
| Potassium | 0mg |
Source: Manufacturer-reported values (snacks-sweets). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in microwave popcorn bag?
- Microwave Popcorn Bag (1 bag popped, 87g) has 43g of total carbs and 36g of net carbs. Per 100 grams: 49.4g total, 41.4g net.
- How many net carbs are in microwave popcorn bag?
- Microwave Popcorn Bag has 36g of net carbs per 1 bag popped (87g) — 43g total carbs minus 7g fiber.
- Is microwave popcorn bag keto-friendly?
- Microwave Popcorn Bag is generally not keto-friendly. 1 bag popped (87g) is 36g net carbs (43g total carbs − 7g fiber); per 100g that is 41.4g net carbs. On a standard keto diet (20–50g net carbs per day), even one serving uses a large share of your daily carbs, so keep portions small or save it for a higher-carb day.
- How many calories are in microwave popcorn bag?
- Microwave Popcorn Bag (1 bag popped, 87g) has 425 calories; that is 488 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.