Carbs in Microwave Popcorn (1 Bag)

How many carbs are in microwave popcorn (1 bag)?

Microwave Popcorn (1 Bag) has 34g net carbs per 100g — 40g total carbs minus 6g fiber — plus 5g protein, 20g fat, and 360 calories. 1 bag (100g) works out to about 34g net carbs and 360 calories. That makes microwave popcorn (1 bag) high in net carbs and lower than the typical snacks and sweet, which averages about 50.7g net carbs per 100g. At this carb count, microwave popcorn (1 bag) is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per per 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.

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Microwave Popcorn (1 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.

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Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor

Microwave Popcorn (1 Bag)
34g
Net carbs
40g
Total carbs
6g
Fiber
5g
Protein
20g
Fat
360
Calories

Values per 100 g.

Carbs by serving size

ServingNet carbsTotal carbsCalories
1 bag34g40g360
100 g (3.5 oz)34g40g360
1 oz (28 g)9.5g11.2g101

How many calories are in microwave popcorn (1 bag)?

Microwave Popcorn (1 Bag) has 360 calories per 100g. 1 bag (100g) has about 360 calories. That's alongside 5g protein, 20g fat, and 34g net carbs per 100g.

Nutrition facts

NutrientAmount (per 100 g)
Calories360
Total carbs40g
Net carbs34g
Fiber6g
Sugar0g
Sugar alcohols0g
Protein5g
Fat20g
Sodium580mg
Potassium0mg

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 (1 bag)?
Microwave Popcorn (1 Bag) has 40g of total carbs and 34g of net carbs per 100 grams.
How many net carbs are in microwave popcorn (1 bag)?
Microwave Popcorn (1 Bag) has 34g of net carbs per 100 grams (total carbs 40g minus 6g fiber).
Is microwave popcorn (1 bag) keto-friendly?
Microwave Popcorn (1 Bag) has 34g 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 microwave popcorn (1 bag)?
Microwave Popcorn (1 Bag) has 360 calories per 100 grams.
How many carbs are in 1 bag of microwave popcorn (1 bag)?
1 bag of microwave popcorn (1 bag) (100g) has about 34g net carbs, 40g total carbs, and 360 calories.

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