How Many Calories Are in Popcorn?
How many calories are in popcorn is really two numbers, not one: 470 kcal per 100 g, which is crisp territory, yet only 141 kcal for a standard 30 g bag, because popcorn barely weighs anything. Volume is on your side here. The 9.3 g of fibre per 100 g does not hurt either.
You'd need to walk about 28 minutes to burn the 141 calories in a standard 30 g bag.
How long does it take to burn off popcorn?
A standard 30 g bag is 141 kcal. Enter your weight and the amount you ate to see how long it takes you to burn that off:
lb
| Activity | Time to burn 141 kcal |
|---|---|
| Walking, brisk | 28 min |
| Cycling, moderate | 18 min |
| Swimming, moderate | 20 min |
| Jogging | 17 min |
| Weight training, moderate | 31 min |
Times are for a 154 lb (11 st) adult at a steady pace; change the weight to see yours. The amount is set to the portion in the text (30 g); change it to what you actually ate. BodyPal works this out from your steps automatically.
On this page
- Quick facts
- Popcorn vs crisps and other snacks
- What a bag actually weighs
- Sweet, toffee and cinema popcorn
- Most popular popcorn brands
- FAQ
Quick facts
Salted retail popcorn, from the UK government's food composition data:
| Nutrient | Per 100 g | Per 30 g bag | % RI (per 100 g) |
|---|---|---|---|
| Calories | 470 kcal / 1,966 kJ | 141 kcal / 590 kJ | 24% |
| Protein | 9.0 g | 2.7 g | 18% |
| Carbohydrates | 59.3 g | 17.8 g | 23% |
| Fat | 23.5 g | 7.1 g | 34% |
| Fibre | 9.3 g | 2.8 g | – |
| Sugar | 0.6 g | 0.2 g | 1% |
| Salt | 1.82 g | 0.55 g | 30% |
Verified nutrition data
Numbers on this page come from CoFID, the UK government’s Composition of Foods Integrated Dataset, and from manufacturer labels where a branded product is named. Last verified August 2026. How we verify our data →
RI = Reference Intake of an average adult (2,000 kcal a day). Fibre has no formal RI.
What that means in the bowl: a 30 g bag fills a mixing bowl, and the same 141 kcal in chocolate is a few squares. That trade, weight for volume, is the entire case for popcorn as a snack. The per-100 g figure looks scary and almost never applies to what you actually eat at home.
Popcorn vs crisps and other snacks
Per gram, salted popcorn is a fried snack and has the numbers to prove it. Per realistic serving, it embarrasses the competition.
| Snack | Amount | Calories |
|---|---|---|
| Popcorn, salted | 30 g bag | 141 kcal (470 per 100 g) |
| Prawn crackers | per 100 g | 570 kcal |
| Maltesers | per ball | ~10 kcal |
| Biscoff biscuit | per biscuit | 38 kcal |
The verdict: a whole 30 g bowl of popcorn costs less than four Biscoff biscuits, and unlike anything else on this table it brings 2.8 g of fibre along. For grazing in front of a film, popcorn is the strongest pick here; a Crunchie or another countline is a fine treat, but it is gone in ninety seconds.
What a bag actually weighs
| Portion | Weight | Calories | Salt |
|---|---|---|---|
| Standard bag | 30 g | 141 kcal | 0.55 g |
| Large "sharing" bag | 80 g | 376 kcal | 1.46 g |
The 30 g bag is the honest single serving, and it is genuinely big in the bowl. The 80 g sharing bag eaten solo is a different transaction: 376 kcal and 1.46 g of salt, nearly a quarter of the 6 g daily maximum the NHS advises.
The fix is boring and effective: decant. Pour 30 g into a bowl, fold the bag shut, and the arithmetic takes care of itself. Popcorn only betrays people who eat it from the bag by feel.
Sweet, toffee and cinema popcorn
Toffee and candied popcorn measures 469 kcal per 100 g in CoFID, the UK government's food dataset, against 470 for salted. Same calories, different reason: sugar, 15 g per 100 g, stands in for some of the oil. Choosing sweet over salted is a flavour decision, not a calorie one, though the salted version's 1.82 g of salt per 100 g is worth knowing about.
Cinema popcorn is where the volume logic flips against you. Tubs are sold by the litre, not the gram, and a large one sails past 100 g of popcorn without any effort on your part. No published number fits every cinema chain, so the honest move is to treat a big shared tub as a meal-sized calorie load, not a nibble.
One genuine plus deserves its line: popcorn is a whole grain, and 9.3 g of fibre per 100 g is a serious figure next to the 30 g a day the NHS says most of us should reach. Few snacks contribute anything at all. A single 30 g bowl supplies 2.8 g, which is more fibre than most people's entire evening of grazing manages, and it costs 141 kcal to get it.
Most popular popcorn brands in the United Kingdom
Ranked by how widely each product appears among foods sold in the United Kingdom, from the BodyPal food database of over 3.3 million products. Calories are the figures printed on each label.
| Product | Calories (per 100 g) |
|---|---|
| Butterkist Cinema Sweet | 507 kcal |
| Propercorn Lightly Sea Salted | 439 kcal |
| Butterkist Toffee Popcorn | 427 kcal |
Brand popularity: BodyPal food database. Nutrition: manufacturer labels.
FAQ
How many calories in 100 g of popcorn?
470 kcal per 100 g for salted retail popcorn, with 23.5 g of fat and 1.82 g of salt. Bear in mind 100 g is an enormous amount of popped corn, several large bowls. The number that matches a normal serving is 141 kcal for a 30 g bag.
How many calories in a bag of popcorn?
141 kcal for a standard 30 g bag and 376 kcal for an 80 g sharing bag. The label weight is doing all the work, so check it before trusting any per-bag figure. Eaten solo, a sharing bag is closer to a light meal than a snack.
How many calories in popcorn with butter?
Add about 74 kcal for every 10 g knob of butter melted over the top, on top of 141 kcal for a 30 g bowl. Butter portions at home are rarely weighed, which is how a light snack quietly doubles. Log the butter as its own item.
How many calories in cinema popcorn?
No single trustworthy number exists: cinema tubs are sold by volume, recipes differ by chain, and a large tub easily holds well over 100 g of popcorn. Treat a big tub as a meal-sized load rather than a snack, and check the chain's own published figures where they exist.
Is popcorn healthy?
As snacks go, yes, in its plain form: 141 kcal per 30 g bowl, 2.8 g of fibre, almost no sugar, and it is a whole grain. The caveats are salt, 1.82 g per 100 g in the salted version, and toppings. Butter and toffee coatings change the deal quickly.
Is popcorn keto?
Not really: 59.3 g of carbohydrate per 100 g, and even a modest 30 g bowl carries 17.8 g of carbs, which consumes most of a strict keto day's allowance. People on looser low-carb patterns sometimes fit in a small handful, but popcorn is fundamentally a grain.
How many calories in sweet popcorn?
Toffee and candied popcorn comes to 469 kcal per 100 g, effectively identical to salted at 470. The difference is composition, not calories: 15 g of sugar per 100 g replaces some of the oil. A 30 g serving of either lands around 141 kcal.
Is popcorn more fattening than crisps?
Per 100 g they are neighbours, with popcorn at 470 kcal sitting in the same band as fried snacks, and prawn crackers above both at 570. Per bowl, popcorn usually wins because it weighs so little for its volume: 30 g fills a bowl for 141 kcal.
Similar foods
- Oreo — 52 kcal per biscuit
- Crunchie — 186 kcal per bar
- Biscoff biscuit — 38 kcal per biscuit
- Bourbon biscuit — 68 kcal each
- Bounty — 278 kcal per twin bar
- Snickers — 235 kcal per bar
Count the bowl, not the kernels
Snap the bowl before the film starts and BodyPal logs it in one go, 141 kcal for a standard serving, butter and all.
