How many calories are in popcorn?

About 95 kcal in a 20 g bag of lightly salted popcorn.

Is popcorn good for weight loss?

Plain or lightly salted popcorn is a good low calorie snack.

Calories in popcorn

A 20 g bag of lightly salted popcorn has about 95 kcal. It is one of the most filling snacks for its calories.

By the Calori team · Updated 21 October 2026 · 3 min read

Popcorn calories by portion

Portion	Calories	Protein	Carbs	Fat
Small bag (20 g)	94 kcal	1.6 g	11 g	4.4 g
Bag (30 g)	141 kcal	2.4 g	16.5 g	6.6 g
Air-popped, 25 g	95 kcal
Medium sweet cinema popcorn	500–700 kcal

Popcorn nutrition per 100 g

Energy	470 kcal (1966 kJ)
Protein	8 g
Carbohydrate	55 g
of which sugars	1 g
Fat	22 g
Fibre	12 g

Typical values. Carbohydrate excludes fibre, as on UK food labels. Brands and varieties differ, so check the label where there is one.

Popcorn as a snack

Popcorn takes up a lot of space for its weight, so a bag feels like more than it is. Sweet and toffee popcorn, and cinema portions, are much higher.

Log it without looking it up

Calori recognises foods like this from a photo and estimates the portion, so you can log a whole plate in one go. Set your daily target with our calorie calculator.

More calorie counts

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Frequently asked questions

How many calories are in popcorn?: About 95 kcal in a 20 g bag of lightly salted popcorn.
Is popcorn good for weight loss?: Plain or lightly salted popcorn is a good low calorie snack.