How to Calculate Food Cost for a Restaurant Dish
Food cost is the single biggest lever on restaurant profitability. Most operators know their dish is "expensive" — but they can't say exactly how expensive until they've done the math. This calculator does it in seconds.
The Food Cost Formula
Plate cost (also called food cost per plate) is straightforward:
Plate Cost = Σ (Ingredient Quantity × Cost per Unit)
Once you know the plate cost, you derive margin from the menu price:
Food Cost % = Plate Cost ÷ Menu Price × 100
Gross Margin % = (Menu Price – Plate Cost) ÷ Menu Price × 100
What's a Good Food Cost Percentage?
The industry standard is a food cost percentage between 28–35%, which equates to a gross margin of 65–72%. That said, targets vary by concept:
| Concept Type | Target Food Cost % | Target Gross Margin | Health |
|---|---|---|---|
| Fine Dining | 28–32% | 68–72% | Healthy |
| Casual Dining | 30–35% | 65–70% | Healthy |
| Fast Casual | 28–33% | 67–72% | Healthy |
| Bar / Gastropub | 25–30% | 70–75% | High margin |
| Any concept > 40% | >40% | <60% | Losing money |
The 3× Pricing Rule Explained
The most common rule of thumb in restaurant pricing is the 3× multiplier: set your menu price at 3 times the plate cost. A $4 plate cost → $12 menu price → 67% gross margin. This is a starting point, not a ceiling. A dish with low perceived value can't sustain 3×. A high-perceived-value dish (premium protein, complex preparation) can sustain 4× or more.
Use the multiplier as a sanity check, then adjust based on competitive pricing, customer perception, and category norms. Your truffle dishes should charge more than 3×. Your bread basket shouldn't charge anything at all.
Why Plate Cost Calculation Gets Complicated
The main source of error in manual food cost calculations is yield percentage. A pound of beef short rib doesn't produce a pound of usable protein — after trimming, bone removal, and cooking shrinkage, you might be left with 65% of the original weight. If you price on raw cost without yield adjustment, you're systematically underpricing your most expensive proteins.
Most restaurants discover yield issues after losing money for months. The proteins with the most dramatic yield losses are exactly the ingredients that make up your most expensive dishes.
Building a Recipe Costing System
This calculator handles one dish at a time. For a full menu, you need a system that:
- Stores your full ingredient library with current costs from each supplier
- Applies yield percentages automatically per ingredient
- Flags every dish below your margin threshold
- Updates every dish's cost automatically when supplier prices change
- Tells you exactly which dishes to reprice and by how much
That's what YIELD does. It's the recipe costing tool built specifically for independent restaurants that want to know exactly where their margin is going. Start with your menu →
Common Food Cost Mistakes
1. Ignoring ingredient yield
Priced a salmon dish at 3× but forgot that salmon fillet has ~10% waste from pin bones and skin? You're effectively at 2.7×. Multiply this across every protein-forward dish and you've lost thousands a month.
2. Using invoice prices instead of portioned costs
You buy chicken for $4/lb, but your recipe calls for 6oz portions. That's $1.50 per portion before yield adjustment — not $4. Many operators work from memory instead of converting units, and the math compounds into meaningful errors.
3. Never updating for supplier price changes
Seafood and protein prices fluctuate with the market. A dish costed in January at 32% food cost may be at 42% in October if you haven't updated ingredient costs. Price reviews should happen at minimum quarterly — monthly for high-volatility proteins.
4. Setting prices by "what feels right"
This is the most common error in independent restaurants. Intuition is not a pricing strategy. The operators who own their numbers are the ones who survive.