What does 100 calories of microwave popcorn (butter) look like?

100 calories =2¼ cups18 g · 0.6 oz
High calorie density5.57 kcal/g
Each 🍿 = one cup (~7.9 g). The last icon shows a part of one.
Food volume for 100 kcal

Microwave popcorn (butter) has 557 calories per 100 g, so 100 calories is 2¼ cups of microwave popcorn (18 g). That's a smaller portion than most snacks & sweets on this site (average 34 g per 100 kcal). Weigh or measure it at first: eyeballed portions of dense foods are where hidden calories come from.

Microwave popcorn (butter): 50 to 500 calories

CaloriesGramsOuncesCups
50 kcal9 g0.3 oz1¼
100 kcal18 g0.6 oz2¼
200 kcal36 g1.3 oz4½
300 kcal54 g1.9 oz6¾
500 kcal90 g3.2 oz11

What's in 100 calories of microwave popcorn (butter)

1.4 gprotein
9.9 gcarbs
6.1 gfat
1.8 gfiber

Protein 5% Carbs 40% Fat 55% of calories

Want more food for the same 100 calories?

These give you at least 2½ times more volume than microwave popcorn (butter):

Compare with other snacks & sweets

Food100 kcal isGrams
🍿 Microwave popcorn (butter)2¼ cups18 g
🍭 Ice pop2½ ice pops127 g
🍅 Ketchup5¾ tablespoons99 g
🍮 Chocolate pudding¾ 3.5-oz cup70 g
🍧 Sorbet1 half cup69 g
🍖 BBQ sauce3½ tablespoons58 g
🍨 Vanilla ice cream¾ half-cup scoop48 g
🍨 Chocolate ice cream⅔ half-cup scoop46 g
🥧 Apple pie⅓ slice42 g
🍦 Ice cream sandwich⅔ sandwich42 g
🍁 Maple syrup2 tablespoons38 g
🍓 Jam1¾ tablespoons36 g
🍯 Honey1½ tablespoons33 g

See all snacks & sweets →

Questions

How much is 100 calories of microwave popcorn (butter)?

100 calories of microwave popcorn (butter) is about 18 g (0.6 oz), or roughly 2¼ cups.

How many calories are in 100 g of microwave popcorn (butter)?

557 calories per 100 g, according to USDA FoodData Central.

Is microwave popcorn good for weight loss?

High calorie density (5.57 kcal per gram). Small portions add up fast. Measuring matters most for foods like this. 100 calories also gives you 1.4 g of protein and 1.8 g of fiber.

How many calories are in one cup?

About 44 calories.

How many cups is 200 calories?

About 4½ (36 g).

Free printable

The 100-calorie cheat sheet

One page with 300+ foods and their exact 100-calorie portions. Stick it on the fridge.

Source: USDA FoodData Central, "Snacks, popcorn, microwave, regular (butter) flavor, made with partially hydrogenated oil" (FDC ID 174785). Grams for 100 kcal = 100 ÷ calories per gram. Unit weight: USDA: 1 cup = 7.9 g. Real portions vary by size, variety and preparation. Updated 2026-10-23.