Dr. Paul Borosky, DBA, MBA
Business Plan Writer · Business Consultant
How Many Customers Does a Restaurant Need to Break Even? Find Your Tuesday Number
Every owner pictures a packed Friday. Survival is decided on an ordinary Tuesday. Know how many guests it takes just to pay the bills.
Written by Dr. Paul Borosky, DBA, MBA
The Definition
What Is Break-Even for a Restaurant?
A restaurant’s break-even point is the level of sales at which total revenue equals total costs, so profit is zero. It is calculated by dividing annual fixed costs by the contribution margin, the share of each sale left after variable costs, and is often expressed as the number of guests needed per day.
Break-even sales = fixed costs ÷ contribution margin
“Every guest leaves you a little after you pay for their plate and the people who served it. Rent wants a set amount no matter who shows up. Break-even is how many guests it takes for those little bits to cover the rent.”
Need the answer fast? Read the gold Short Answer boxes and the numbered steps. Want the full picture? Follow Louie Waffles, the big-hearted Labrador who runs Waffle Woofs Bakery & Café, from Dr. Paul’s Fabled Forest, as he finds out a full weekend is hiding a quiet problem. The story shows up in a few short gold notes along the way. The math sits in one section, clearly marked.
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Meet Louie: The Weekend Will Cover It
Some lessons stick better as a story. Dr. Paul’s Fabled Forest is his business school told through a forest full of small business owners. Doctor Owl, a dry-witted consultant who lives in the Lone Oak, helps them fix the same problems real owners face. Today he stops by Waffle Woofs Bakery & Café on a slow Tuesday night. Louie Waffles, a big-hearted Labrador with syrup on his ears, has four tables and a lot of empty chairs.
LOUIE: (tail wagging anyway) Doctor Owl! Sit anywhere. Lots of anywhere tonight.
DOCTOR OWL: Quiet night.
LOUIE: Tuesdays are always quiet. That’s fine. The weekend makes up for it.
DOCTOR OWL: Does it? How many guests does tonight need to pay tonight’s share of the rent?
LOUIE: (his ears drooping a little) I… don’t know. More than four?
DOCTOR OWL: And when a guest pays for a waffle, how much is left after the batter, the syrup, and the help?
LOUIE: Some. I think. I never looked.
A family at table three finishes. Louie hurries over with a free second plate.
DOCTOR OWL: Louie, you are not sure a paying guest covers their share. And you just gave one away.
An original Fabled Forest moment. Similar stories about Doctor Owl and the forest’s owners are in Accounting and Finance for Small Businesses, Book 2 of Dr. Paul’s Fabled Forest Business School.
Louie has a decision to make. Keep reading. You’ll see what he does, and why it works for your restaurant too.
Similar stories in Accounting and Finance for Small BusinessesDr. Paul’s Fabled Forest Business School, Book 2 See the Books →
Two Kinds of Cost
Fixed Costs vs. Costs That Move With Every Guest
Every cost in a restaurant falls into one of two groups. Break-even starts with knowing which is which.
Food on the plate, the drink in the glass, the card fee on the check, the to-go box, and most hourly labor.
Rent, insurance, utilities, the bookkeeper, loan interest, and the marketing budget. Forty guests or a hundred and forty, they still come due.
What each guest leaves you after the variable costs is called the contribution margin. It is the share of every sale that goes toward rent and everything else. Most first-time owners think it is bigger than it is. They look at food cost and assume the rest is theirs. Labor takes almost as much as the food.
Louie never looked at what a guest leaves behind after the batter and the help. So he had no idea how many guests a Tuesday needs.
Show the Math
How Do You Calculate a Restaurant’s Break-Even?
Here is an example for a 70-seat restaurant with a $34 average check. Illustration numbers only.
| Step | How it works | Example |
|---|---|---|
| 1. Variable costs | Food and beverage, hourly labor, card fees, supplies, as a share of sales | 67.6% |
| 2. Contribution margin | 100% minus variable costs | 32.4% (about $11 of every $34 check) |
| 3. Fixed costs for the year | Rent, insurance, utilities, interest, depreciation, and the rest | $308,600 |
| 4. Break-even sales | Fixed costs ÷ contribution margin | About $952,000 a year |
| 5. Break-even guests | Divide by nights open (306), then by average check | About 91 guests a night |
Raise the average check by $2 with the same food and labor per guest, and break-even in this example drops from about 91 guests a night to about 78. Adding $2 to a check is far easier than finding 13 more guests every night.
Now add your own salary to fixed costs and run it again. A restaurant that only breaks even when the owner works for free has not broken even.
Make It Work
What If Your Break-Even Number Is Too High?
Break-even is a math problem. Hitting it is a kitchen problem. If the number looks too high, you only have two ways to move it.
- 1
Raise what each guest leaves you
A better wine list, a dessert worth ordering, smarter menu pricing. See how to price a restaurant menu.
- 2
Stop giving away the margin
Free extras feel generous. Each one comes straight out of the money that pays the rent.
Louie’s FixThe free second plate became a one-bite sample. The second plate went back on the menu, at a price.
- 3
Lower fixed costs before you sign
Rent is the biggest fixed cost, and it is only negotiable before the lease is signed.
- 4
Fill the slow nights on purpose
A Tuesday special, a lunch shift, catering, or private events. Plan them, do not hope for them.
From Dr. Paul’s Work as a Business Plan Writer
The Number a Business Plan Writer Puts Up Front
Lenders want to see break-even guests per day, and they want to see it next to your plan. The gap between the two is your cushion, and showing it tells a lender you understand your own risk.
When Dr. Paul writes a restaurant plan, break-even is not buried in an appendix. It goes in the executive summary and again in the financial projections.
Your plan is not convincing because your Friday looks great. It is convincing because your Tuesday still pays the bills.
From Dr. Paul’s Fabled Forest
What Louie Did Next
A week later, there was a chalkboard behind the Waffle Woofs counter. One number on it, circled.
LOUIE: That’s how many guests a night pays the rent. I figured it out. It was more than four.
DOCTOR OWL: And the free second plates?
LOUIE: (a little sheepish) Samples now. One bite.
LOUIE: And Tuesdays get a Tuesday Stack. A special. Folks actually come for it.
DOCTOR OWL: And the weekend?
LOUIE: The weekend is the extra now. Not the rescue.
The lesson for your restaurant: Know your break-even number before you open, put it where you can see it, and build the slow nights into the plan instead of hoping the weekend covers them.
In Your Business Plan
How Does Break-Even Go in Your Business Plan?
Break-even belongs in two places in your plan: the executive summary and the financial projections. Related guides: How Do You Read a Restaurant Income Statement? and How Do You Write a Restaurant Executive Summary?.
- 1
Show break-even guests per day
Next to your planned guests per day. The gap is your cushion.
- 2
Show your assumptions
Average check, variable costs as a share of sales, and annual fixed costs.
- 3
Run it with your salary included
Lenders know an owner who cannot pay themselves will not last.
- 4
Show the slow-night plan
How you will fill Tuesdays, not just how you will handle Fridays.
This is one piece of the full plan. See How to Write a Restaurant Business Plan for every section, start to finish.
Want your break-even built into a plan a lender trusts?Dr. Paul writes the plan and the projections, with break-even front and center.
Questions
Restaurant Break-Even Questions
How do you calculate break-even for a restaurant?
Divide your annual fixed costs by your contribution margin, the share of each sale left after variable costs. That gives break-even sales. Divide by the nights you are open and your average check to get break-even guests per night.
How many customers does a restaurant need per day?
It depends on your fixed costs, average check, and variable costs. Calculate your own break-even guests per day and plan for a cushion above it.
How can a restaurant lower its break-even point?
Raise what each guest leaves you through pricing and menu mix, stop giving away margin, lower fixed costs before signing the lease, and fill slow nights on purpose.
Beginner’s Guide to Restaurant Financial Statements and Financial Ratios
Break-even, prime cost, pricing, and the cash behind all of it, in plain English.