This calculator computes your food cost percentage - the single most important number in restaurant profitability. Enter what a dish costs to make and what you charge for it, and you instantly see your food cost %, gross profit per plate, and the menu price needed to hit your target margin.
The Food Cost Formula
Food Cost % = (Ingredient Cost / Menu Price) x 100 Gross Profit = Menu Price - Ingredient Cost Ideal Menu Price = Ingredient Cost / Target Food Cost %
Industry Benchmarks
Below 20%: Possible pricing error or underestimated ingredient cost
20-28%: Excellent - high margin, common in bars and fast-casual
28-35%: Ideal - industry standard for full-service restaurants
35-40%: High - review portion sizes or supplier pricing
Above 40%: Unsustainable - immediate menu or cost review needed
Example Calculation
A pasta dish sells for $14.00 on the menu. The total ingredient cost per plate (pasta, sauce, protein, garnish) is $4.20.
Menu selling price$14.00
Total ingredient cost$4.20
Food cost % ($4.20 / $14.00 x 100)30.0%
Gross profit per plate ($14.00 - $4.20)$9.80
Profit margin70.0%
Rating: Ideal (28-35% range)
A 30% food cost leaves $9.80 of gross profit on this dish. Out of that $9.80, the restaurant still needs to cover labor, rent, utilities, and all other operating expenses. In a typical full-service restaurant, those costs consume another 50-55% of revenue, leaving a net profit margin of around 5-10% when well managed.
Common Mistakes to Avoid
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Forgetting incidental ingredients
Salt, oil, butter, garnishes, and condiments add up. A burger that costs $3.00 in main ingredients may actually cost $3.60 once you include bun, condiments, lettuce, tomato, and the paper wrapper. Missing these understates your true food cost.
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Using purchase price instead of per-serving cost
If you buy a 5-pound chicken for $12, your cost per serving is not $12. If the breast yields two 6-ounce servings per bird half, your per-plate protein cost is much lower. Always break bulk purchase prices down to a per-serving amount.
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Ignoring waste and trim
A whole fish has bones, skin, and head that you do not plate. A head of romaine has outer leaves you discard. Your actual usable yield is less than your raw purchase weight. Factor in a yield percentage for proteins and produce to get an accurate ingredient cost.
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Not updating costs when supplier prices change
Ingredient costs fluctuate with seasons, supply chain issues, and contracts. A dish that was 30% food cost in January may be 38% in July if proteins spiked. Review your food cost calculations at least monthly.
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Confusing food cost with total cost
Food cost percentage only measures ingredient costs against revenue. It does not include labor, paper goods, credit card fees, or overhead. A dish at 30% food cost is not necessarily profitable if your restaurant also has 45% labor cost.
Frequently Asked Questions
Food cost percentage is the ratio of your ingredient cost to your menu selling price, expressed as a percent. If a dish costs $4.20 to make and sells for $14.00, the food cost percentage is 30%. It tells you how much of every dollar in revenue goes toward raw ingredients.
National Restaurant Association - Restaurant Industry Benchmarks
Industry standard food cost percentage ranges (28-35%) and prime cost guidelines for full-service and limited-service restaurants.
2
Cornell School of Hotel Administration - Menu Engineering
Academic framework for analyzing menu item profitability using food cost percentage and contribution margin methodology.
3
USDA Economic Research Service - Food Price Outlook
Reference for understanding ingredient cost volatility and how seasonal and supply chain factors affect restaurant food costs.
HR
Hassaan Rasheed
Developer and Researcher, CalculatorFlux
Researches and verifies the formulas, methodology, and source data behind each calculator on CalculatorFlux. All tools are built and checked against the cited references before publication.
Run every dish through this calculator before adding it to your menu. A dish that looks impressive but costs $7 to make should sell for at least $21-25 to stay within the 28-35% range. Price it below that and it becomes a loss leader even before labor.