Your break-even plate count
Enter what you paid per person, your local sales tax and your tip, then pick the kind of all-you-can-eat. The plate counts update as you type.
How the break-even math works
Your break-even point is the number of plates it takes before the food you ate is worth more than what you paid. Picture ordering every plate off a regular menu: break-even is the moment that imaginary tab matches your real one.
Plates to break even = (price + tax + tip) ÷ value per plate, rounded up
- Your real bill is the price plus sales tax plus tip. The calculator figures the tip on the pre-tax price.
- Value per plate is a Plate Debt estimated a la carte value: what one standard portion of a dish would typically cost on a regular US menu.
- Round up, because half a plate does not pay anything off.
A worked example
Take a $24.99 American buffet with 8% sales tax and an 18% tip. Your real bill is $24.99 × 1.26 = $31.49.
- Eating the most valuable dishes, about $13.10 a plate: $31.49 ÷ $13.10 = 2.40, so 3 plates.
- Filling up on the cheapest dishes, about $2.60 a plate: $31.49 ÷ $2.60 = 12.11, so 13 plates.
Same buffet, same price. One plan takes three plates and the other takes thirteen.
Premium and filler values by type
The calculator uses these averages: the five most valuable and the five least valuable dishes for each kind of restaurant in the Plate Debt catalog.
| Restaurant type | Premium avg | Filler avg | Premium vs filler |
|---|---|---|---|
| Korean BBQ | $18.20 | $3.25 | 5.6x |
| AYCE sushi | $15.30 | $3.35 | 4.6x |
| Hotpot | $18.60 | $3.05 | 6.1x |
| American buffet | $13.10 | $2.60 | 5.0x |
| Chinese buffet | $15.60 | $2.70 | 5.8x |
| Seafood buffet | $26.80 | $2.95 | 9.1x |
| Brazilian steakhouse | $13.80 | $3.85 | 3.6x |
| Brunch buffet | $16.50 | $3.85 | 4.3x |
In every format, a premium plate is worth roughly 3.5 to 9 times a filler plate. That is why what you eat matters more than how much you eat.
How to read your result
- The premium number is your best case. It is the fewest plates that can pay off your bill, if every plate is one of the priciest dishes on the menu.
- The filler number is your worst case. It is how far you would have to go on rice, bread, noodles and soda alone.
- Most meals land in between. Start with the premium plates while you are hungriest, and the filler can wait.
- Add the extras to what you paid. Drinks that cost extra, a premium tier upcharge or a leftover fee all raise the bill you need to eat back. Our guide to AYCE rules and leftover fees shows how much one fee changes the math.
- At a Brazilian steakhouse, a plate is one serving from the skewer, about two slices. The Brazilian steakhouse guide has the cut-by-cut numbers.
At the table, the Plate Debt app does this math live: you tap each plate as it lands and watch the debt drop until the PAID stamp hits.
Guides for each format
The calculator gives you the number. The guides show you how to hit it:
- All-you-can-eat Korean BBQ tips: which cuts to order first and the premium tier swap math.
- All-you-can-eat hotpot tips: meat first, noodles last, and broth upcharges.
- All-you-can-eat sushi tips: value per piece, sashimi versus rolls.
- How to beat the buffet: 12 tips for any all-you-can-eat.
- Is all-you-can-eat worth it? The full break-even math for eight formats.
FAQ
How do you calculate if all-you-can-eat is worth it?
Add tax and tip to the price to get your real bill, divide it by the value of each plate you eat, and round up. The result is how many plates it takes to break even. The calculator on this page does it for eight kinds of all-you-can-eat.
How many plates do you need to eat at a buffet to break even?
At a $24.99 American buffet with 8% tax and an 18% tip, about 3 plates of the most valuable dishes or 13 plates of the cheapest ones, using Plate Debt estimated a la carte values.
Should I include tax and tip in the break-even math?
Yes. They are part of what you pay, so they are part of what you need to eat back. The calculator figures the tip on the pre-tax price.
Where do the plate values come from?
From the Plate Debt catalog: an estimated a la carte value for one standard portion of each dish on a regular US menu. They are estimates, not any restaurant's real prices.
Is the buffet calculator free?
Yes. It runs in your browser with no sign-up. The free Plate Debt iPhone app does the same math live while you eat, plate by plate.
Plate Debt is not affiliated with any restaurant. Dish values are estimates and prices vary by location.