Restaurant · Guide · Updated July 2026
How to Calculate Your Restaurant Break-Even Point
The short answer
Your restaurant break-even point is the minimum monthly revenue you need so that expenses equal revenue and you stop losing money. The formula is: Fixed Costs divided by (1 minus your Variable Cost Percentage). For Ben's Burger, with $3,450 in fixed costs and a 70% variable cost rate, that number is $11,500 per month.
Your break-even point is the minimum amount of revenue your restaurant must generate so that you do not lose a single dollar. Revenue equals expenses, nothing more. That number is your floor, your absolute minimum monthly goal, and every decision you make about rent, staffing, and menu pricing has to be measured against it.
Most restaurant owners who fail do not blow up overnight. They bleed out slowly because they never calculated this number. The bank account dips a little every week, it feels like the business is “not doing too well,” and before long they are refinancing their home or taking on debt just to keep the lights on. You are not going to be that operator.
What Is the Break-Even Point Formula?
The formula has two inputs you already track: your fixed costs and your variable cost percentage.
Break-Even Point = Fixed Costs / (1 - Variable Cost %)
That is it. Two numbers, one division. Let’s walk through both inputs so the formula clicks.
What Counts as a Fixed Cost?
Fixed costs are expenses that stay the same no matter how many covers you do. Sell ten burgers or a thousand, the number does not move.
The two most common fixed costs at the early stage are rent and depreciation on your build-out. In the Ben’s Burger example we use throughout this course, rent comes in at $2,450 per month. Depreciation on the renovation is accounted for at roughly $1,000 per month. Add those together and fixed costs total $3,450 per month.
That $3,450 is the same whether Ben has a quiet Tuesday or a slammed Saturday. It does not care about his sales volume.
What Is the Variable Cost Percentage?
Variable costs move with your revenue. Food cost, beverage cost, hourly labor, packaging, credit card fees, all of these rise and fall with how busy you are. We budget these as a percentage of revenue, not a flat dollar amount.
In the Ben’s Burger projection, variable costs are capped at 70% of revenue. That means for every dollar Ben brings in, seventy cents goes to variable expenses, and thirty cents is available to cover fixed costs and, eventually, profit.
If you have not yet worked out your own variable cost breakdown, go back and do that first. The break-even calculation is only as accurate as the percentages you feed into it.
How Does the Math Actually Work?
Plug Ben’s numbers into the formula:
- Fixed Costs: $3,450
- Variable Cost Percentage: 70%, written as 0.7
- Formula: $3,450 / (1 - 0.7) = $3,450 / 0.3
$3,450 divided by 0.3 equals $11,500 per month.
That is Ben’s break-even point. He needs $11,500 in monthly revenue before he stops losing money. Not to be profitable. Not to pay himself. Just to not go backwards.
Why Does the Formula Divide by (1 Minus the Variable Rate)?
Here is the intuition. If 70 cents of every dollar covers variable costs, only 30 cents of every dollar is free to pay fixed expenses. So to cover $3,450 in fixed costs, you need enough revenue that 30% of it equals $3,450. Dividing by 0.3 is exactly that calculation. The formula is not complicated once you see what it is actually doing.
How Do You Use the Break-Even Number Day to Day?
Once you have this number, it becomes your operating compass.
Say Ben is tracking revenue mid-month and he is sitting at $9,500. He knows he needs $2,000 more to break even. That clarity tells him exactly what to do: push upsells, run a weekend special, coach his team to offer the add-on drink or the upgrade. He is not guessing. He has a concrete target.
The number also works in reverse during your planning stage. If Ben researches the competitor down the block and that shop is only doing $9,000 a month in revenue, and Ben’s break-even is $11,500, that is a serious red flag before he ever signs a lease. Either the rent is too high, or the location cannot support the volume he needs. Better to know that before committing, not six months after.
What If Your Numbers Are Only Projections Right Now?
They probably are, and that is fine. The whole point of this exercise is projection. None of the numbers you run before opening are real yet. But the more accurately you estimate your rent, your build-out depreciation, and your variable cost percentages, the more useful your break-even number becomes. A rough number built on real research is far more valuable than no number at all.
Pull your actual lease quote. Get contractor bids for your renovation. Research food cost percentages in your category. Every improvement in your inputs makes your break-even point a more reliable planning tool.
What Does the Break-Even Point Tell You About a Full Restaurant Opening?
For context at a larger scale, as of 2026, opening a full-service restaurant in the US costs roughly $969,000 (range $727,000 to $1,211,500). Before you sign any lease, you want approximately 1.4 times that amount in accessible cash, which puts your pre-signing cash target around $1,356,500. The break-even calculation for a restaurant at that scale works the same way: identify your fixed monthly obligations, know your variable cost percentage, and divide. The formula does not change with the size of the operation.
The Bottom Line
Your break-even point is not an accounting exercise. It is survival information. Calculate it before you open, revisit it every time your rent or cost structure changes, and treat it as your non-negotiable monthly minimum. A restaurant that knows its break-even and manages toward it every single week will always outlast one that is just hoping the revenue comes in. Know your number, then go get it.
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Run your numbers →Questions owners actually ask
How does the formula produce $11,500 from $3,450 in fixed costs?
Ben's Burger has a variable cost rate of 70%, which means only 30 cents of every revenue dollar is available to cover fixed costs. The formula divides fixed costs by (1 minus the variable rate), so $3,450 divided by 0.3 equals $11,500. Dividing by 0.3 is the same as asking: what total revenue produces $3,450 when 30% of it is taken?
What costs go into the fixed cost number?
Fixed costs are expenses that stay constant regardless of sales volume. In the Ben's Burger example, these are rent at $2,450 per month and depreciation on the renovation at roughly $1,000 per month, totaling $3,450. No matter how many burgers Ben sells, those two costs do not change.
What is included in the 70% variable cost figure?
Variable costs are all expenses that rise and fall with revenue, such as food cost, labor, packaging, and similar items. In this course example, a maximum of 70% of revenue is budgeted to variable costs. The exact breakdown of what makes up that 70% is covered in the preceding lesson on variable versus fixed costs.
What happens if my projected revenue is below my break-even point?
That is a serious planning signal. If competitive research suggests the market in your location cannot support the revenue your break-even requires, either your fixed costs are too high or the location is wrong. The right move is to renegotiate rent, reduce build-out costs, or find a different location before signing anything.
How accurate do my numbers need to be for this to be useful?
They do not need to be perfect, but they need to be grounded in real research. Get an actual lease quote, get contractor bids for your renovation, and benchmark food cost percentages in your category. The more your inputs reflect reality, the more reliable your break-even number becomes as a planning and operating tool.
Why do so many restaurant owners not know their break-even point?
The failure is gradual, which makes it easy to miss. Revenue comes in, expenses go out, and because of the timing difference between when money arrives and when bills are due, it does not feel like losing money. It just feels like the business is slow. By the time the bank account is critically low, the operator is already in trouble.
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