POPNIGHT
Movie-night done right — popcorn ratios, seasonings, and the perfect batch.
From working out how far your kernels will stretch and getting the oil-to-butter ratio right to planning a batch for a whole room of guests, scaling a seasoning, comparing popping methods, and estimating calories, PopNight pairs free hands-on calculators with practical guides and a richly illustrated museum. Pop smarter, snack happier.
Popcorn Calculators
Free tools for movie night — yield calculator, oil & butter ratio calculator, batch calculator for guests, seasoning mix calculator, air popper vs oil comparison, and a calorie estimator.
Popcorn Yield Calculator
Estimate how many cups of popped popcorn a given amount of unpopped kernels will make, based on your popping method.
Oil & Butter Ratio Calculator
Work out how much popping oil and melted butter to use, from a light drizzle to a rich, theater-style soak.
Popcorn Batch Calculator for Guests
Plan exactly how much popcorn, kernels, and popping oil to buy for a movie night or party.
Popcorn Seasoning Mix Calculator
Scale a popcorn seasoning to any batch size, or enter your own custom ratio.
Air Popper vs Oil Popper Calculator
Compare popping the same kernels in an air popper versus stovetop with oil, side by side.
Popcorn Calorie Estimator
Estimate the calories in a bowl of popcorn from the popped amount, method, and toppings.
Popcorn & Snacks Museum
Wander an immersive, richly illustrated collection — popcorn’s history and varieties, the world of cinema and concessions, the machines and poppers that made it all possible, and snack foods from around the world, each in its own gallery. Every entry, image, and fact is drawn from Wikipedia and Wikimedia Commons.
Tour the museum →From the Journal
Guides on popping methods, toppings and seasoning, hosting a movie night, and a little popcorn history — reading to pair with the calculators above.
How Much Popcorn Does 1/4 Cup of Kernels Really Make?
The classic 1/4 cup of kernels-to-8 cups popped ratio explained — why kernels expand so much, what changes the ratio, and how to measure a batch with confidence.
Air Popper vs Stovetop Oil: Which Popcorn Method Wins?
Two popular ways to pop a kernel, compared on yield, flavor, mess, and estimated calories — so you can pick the method that actually fits how you snack.
The Best Oil for Popping Popcorn (and How Much to Use)
Why smoke point matters more than flavor when picking a popping oil, the classic 3-tablespoons-per-1/2-cup ratio explained, and which oils to reach for and skip.
How Much Popcorn Do You Need for a Movie Night? A Guest-Count Guide
A practical guide to sizing a popcorn batch for a crowd — per-person serving guidelines, why a buffer matters, and when to pop in rounds instead of one giant batch.
Kettle Corn at Home: The Sugar-to-Kernel Ratio That Works
The classic sweet-and-salty kettle corn ratio, why the sugar has to go in with the kernels rather than on top, and how to avoid a scorched batch.
A Brief History of Popcorn at the Movies
How popcorn went from a street-cart snack theater owners tried to ban to the defining smell of a movie night — and why the Great Depression had a lot to do with it.
Keep Learning
Plain-language explainers on the science of popping, the culture of cinema snacking, the machines that pop the corn, and the snack foods of the world — everything you need to go deeper with confidence.
Visit the Learn hub →