How Much Does a Dish Cost? Food Cost Tips

In short: the food cost of a dish is the cost of ingredients divided by the selling price. Calculating it dish by dish, rather than just as a venue average, reveals which dishes are truly profitable and which are not.

How many restaurant owners know exactly how much the ingredients for their best-selling menu item cost? Surprisingly few. Most set prices by looking at the competition or relying on intuition, without ever doing the real math.

Why food cost per dish matters more than overall food cost

An average venue food cost of 30% might hide one dish that costs 45% and another that costs 18%—averaged together they seem fine, but the first is eating up all the margin the second generates.

How to calculate it, in practice

• Ingredient cost per portion — how much each recipe component weighs/costs, based on the actual price paid to the supplier.
• Percentage of selling price — the cost divided by the dish price on the menu.
• Comparison with a target goal — set once for the venue, so every dish is measured against the same benchmark.

What almost always emerges

When a restaurant owner calculates food cost per dish for the first time, they almost always discover at least one customer-favorite dish that actually generates very little margin.

You don't need to redo it from scratch every time

Once recipes are set with actual quantities, the cost updates automatically every time an ingredient price changes.

A calculation example (illustrative values)

Let's take a dish with ingredients costing €3.20 per portion, sold at €12. The food cost is 3.20 ÷ 12 = approximately 27%. A second dish has ingredients costing €5.40 and the same price of €12: the food cost is 45%. On average, the two make 36%, but the second leaves much less margin than the first. The numbers are just an example: always use your actual supplier prices.

Frequently asked questions about food cost

What is a "fair" food cost?

There is no single value: it depends on the type of venue, labor costs, and rent. Choose a goal for your venue and compare each dish against it. If a dish exceeds it, you can change the recipe, portion size, or price.

What do I include in ingredient costs?

Everything that ends up on the plate, including small quantities (oil, spices, garnishes) and prep waste. Weigh portions at least once to get real data.

How often should I recalculate it?

When supplier prices or the recipe change. With a tool that keeps recipes linked to ingredients, the cost updates automatically.

How do I use the result?

Look at best-selling dishes with a high food cost: these are the ones where a small price or portion adjustment pays off the most. You can do the math with our food cost calculator and discover how BoostWiFi manages it for restaurants and bars.

What to do today in 3 steps

1. Choose your 5 best-selling dishes.
2. Calculate the ingredient cost per portion using current prices.
3. Compare them to your goal and decide which one to address first.