Restaurant Net Profit Margin Calculator
Enter one period of revenue and your full cost stack to see prime cost, gross profit and the net margin that actually reaches the bottom line.
What net profit margin actually measures
Net profit margin is the share of every dollar of revenue that survives the entire cost stack and reaches the bottom line. It is the one restaurant number that answers the question owners actually care about: after food, drink, wages, rent, utilities, insurance, marketing, repairs, card fees and loan interest, what is left? Food cost percentage, labour percentage and prime cost each measure a leg of the journey. Net margin measures the destination.
The result is small by the standards of most industries, and that is normal rather than alarming. A full-service restaurant returning 5% is behaving like a full-service restaurant, not failing at being one. What matters is that thin margins are fragile in a way that fat ones are not. On a 5% net margin, a two-point rise in food cost wipes out 40% of your profit, and you will feel that in your bank account weeks before it appears on a P&L.
This calculator works down the same order your profit and loss statement does: cost of goods, then labour, then occupancy, then operating expenses, then everything below the operating line. It reports gross profit and prime cost along the way, because a disappointing net margin is almost always created in one of those two places rather than in the long tail of small overheads.
The cost stack, line by line
Cost of goods sold
Food and beverage cost for the period, calculated properly as opening stock plus purchases minus closing stock — not simply what you paid suppliers. Purchases alone will flatter or punish you depending on whether you happened to build stock that month. If you are not counting inventory at least monthly, your margin figure carries an error you cannot size. Use the food cost percentage calculator and the beverage cost calculator to check each half separately.
Labour
All wages, plus payroll taxes, plus benefits, plus management salaries. The most common distortion in an owner-operated site is leaving the owner's own labour out of this line. If you work fifty hours a week in the kitchen and take drawings rather than a salary, your reported margin includes the value of unpaid labour you would have to buy if you stepped away. That is not a profitable business; it is a job with an ownership certificate attached. Put a market-rate salary for yourself in the labour line and see what the margin does. The labour cost percentage calculator breaks this down against sales.
Occupancy
Rent, service charge, property taxes and building insurance. This is the least flexible cost in the business and the one that most often makes a margin impossible before the doors open. A site signed at 12% of achievable sales cannot be rescued by better purchasing, and no amount of menu work will change it before the lease renews. Check the ratio with the rent-to-sales calculator.
Other operating costs
Utilities, marketing, cleaning, laundry, repairs, smallwares replacement, card processing fees, delivery platform commission, software subscriptions, accounting and licences. Individually each looks too small to matter. Collectively they routinely run 15–20% of revenue, which is more than most operators assume and more than most review annually.
Depreciation, interest and fees
Costs that sit below the operating line: loan interest, equipment depreciation, and franchise or royalty fees where they apply. Depreciation is not a cash cost this month, but it is a real one — it is the cost of the refit you will eventually have to fund again. Leaving it out produces a margin that looks fine right up until the fryers need replacing.
What margin should you expect
| Concept | Typical net margin | What drives it |
|---|---|---|
| Full-service, independent | 3–6% | High labour, high occupancy, broad menu, low covers per hour. |
| Fast casual / counter service | 6–12% | Lean labour model, tight menu, fast throughput. |
| Quick service | 8–15% | Volume, standardisation and low labour per transaction. |
| Bar or pub led by drink sales | 8–14% | Beverage gross margins well above food, less prep labour. |
| Coffee shop / bakery | 5–10% | Strong drink margins offset by short trading hours and rent. |
| Delivery-heavy operation | 0–5% | Platform commission of 25–30% removes most of the gross profit. |
Treat these as orientation, not targets. The spread within any one of these categories is wider than the gap between them, because occupancy cost and average check vary far more by location than by format. A city-centre full-service site paying 11% rent and a suburban one paying 6% are running different businesses even if the menus are identical. The useful comparison is your own margin last quarter, not somebody else's concept.
Prime cost decides the outcome
Prime cost — cost of goods plus total labour — is the sum of the two largest costs and the two you can still influence this week. Occupancy is fixed by contract and overheads move slowly. Prime cost moves daily, which is why it is the number worth managing rather than merely reporting.
For most full-service restaurants, prime cost at or below 60% of revenue leaves room for a viable margin; above 65% the business is usually loss-making once occupancy and overheads are paid. Counter-service operations should be closer to 55%. The arithmetic is blunt: if prime cost is 68% and overheads are 30%, there is no purchasing decision or staff rota that produces a profit, and the problem is the model rather than the execution.
Because prime cost is two variables, the same total can be reached in very different ways — a scratch kitchen with low food cost and high labour, or a prepared-product operation with the reverse. Neither is wrong. What matters is the total, which is why chasing food cost in isolation so often moves labour in the opposite direction and leaves the margin exactly where it was. The prime cost calculator shows both halves together.
Margin is not cash
A profitable restaurant can still run out of money, and this catches out more operators than any other single thing. Net margin is an accounting result for a period. Cash is what is in the account on the day rent is due. The two diverge because of stock building, supplier terms, loan principal repayments, tax instalments, deposits and capital spending — none of which appear in the margin calculation you have just run.
Loan principal is the clearest example. Only the interest portion is a cost; the capital repayment leaves your bank account without ever touching the P&L. A site returning 6% net margin while repaying principal at 5% of revenue is generating almost no free cash, and no amount of staring at the profit figure will reveal that.
Run both. Use this calculator to understand whether the model works, and the cash flow forecast to understand whether you can pay for it next month.
How to move the number
Ranked roughly by how much margin they return for the effort involved:
- Price deliberately, not annually. A 3% price increase on a 6% margin business adds half again to net profit if volume holds, and volume usually does when the increase is spread unevenly across the menu rather than applied as a blanket percentage.
- Fix the menu mix before the menu prices. Steering guests toward high-margin dishes changes gross profit without changing a single cost. Run the menu engineering numbers before repricing anything.
- Close the gap between theoretical and actual food cost. Waste, over-portioning and unrecorded consumption typically account for two to four points, and every point recovered is a point of net margin.
- Schedule to demand rather than habit. Labour is a semi-variable cost that most sites treat as fixed. Matching rotas to hourly cover forecasts is usually worth more than any purchasing negotiation.
- Re-tender the boring overheads. Card processing, waste collection, laundry, insurance and utilities are rarely reviewed and frequently 10–20% above market after three years on the same contract.
- Audit delivery channel by channel. Platform commission can turn a 70% gross margin dish into a loss. Volume that loses money is not a growth problem to solve later.
- Raise revenue against a fixed cost base. Occupancy and management salaries do not increase with covers, so incremental sales drop through at a much higher rate than your average margin suggests.
One caution about cost cutting: below a certain point it becomes revenue cutting with a delay. Reducing portions, thinning staffing at peak, or deferring maintenance all improve the current period's margin and damage the next four. The interventions that hold are the ones that remove cost without the guest noticing anything at all.
Frequently asked questions
What is a good net profit margin for a restaurant?
For an independent full-service restaurant, 3–6% is typical and 10% is strong. Counter-service and quick-service formats reach 8–15% because labour per transaction is lower. Anything reported above 20% usually means a cost line has been left out — most often owner labour or depreciation.
What is the difference between gross margin and net margin?
Gross margin is revenue minus cost of goods sold only, so it typically runs 65–75%. Net margin subtracts everything else — labour, occupancy, overheads, interest and depreciation. Gross margin tells you whether your pricing works; net margin tells you whether your business does.
Should I include my own salary in the labour cost?
Yes, at the rate you would have to pay someone to do your job. An owner-operator who excludes their own labour is reporting a margin that includes free work, which disappears the moment they want a holiday or a buyer wants to value the business.
Should the calculation use a month or a year?
Use a calendar month or a full quarter. A week is too short — monthly bills such as rent and insurance land unevenly and distort it badly. A year smooths out seasonality but arrives too late to act on.
Why is my margin positive but my bank balance falling?
Usually loan principal repayments, tax instalments, stock building or capital spending. None of those are costs on a profit and loss statement, but all of them take cash. Profit and cash are different questions and need separate forecasts.
Does delivery revenue make the margin better or worse?
Almost always worse per dollar. Commission of 25–30% comes off the top, which on a dish with 70% gross margin leaves very little after packaging and the labour to assemble it. Delivery can still be worth running for fixed-cost absorption, but it dilutes the percentage.
My margin is negative. Where do I start?
Check prime cost first. If cost of goods plus labour exceeds about 65% of revenue, no overhead reduction will fix it and the work is in pricing, menu mix and scheduling. If prime cost is in range, the problem is occupancy or overheads, which means either sales volume is too low for the site or a contract needs renegotiating.