How to Calculate Food Cost Per Person for Catering (With Real Numbers)

Most caterers lose money not on bad events — but on bad math. They quote a price, deliver great food, work a full weekend, and then sit down with the receipts and realize they barely covered ingredients.

The fix isn't charging more. It's knowing your cost per person before you quote. And that starts with calculating your catering food cost accurately — every time, for every event.

Here's exactly how to do it.

Why Catering Food Costing Is Different From Restaurant Costing

In a restaurant, you cost one plate and multiply by covers. In catering, you're building for 25, 50, or 200 people across multiple dishes — and small errors compound fast. A $0.50 per-person miscalculation on a 200-guest event is $100 of margin you didn't know you were leaving on the table.

Three things make catering costing unique:

• Batch recipes — ingredients come in units that don't divide evenly into serving sizes
• Yield loss at scale — proteins, produce, and garnishes all shrink during prep, and the losses add up across a full menu
• Buffer stock — you always need extra for late additions, portioning variance, or a dropped tray

Step 1: Cost Each Dish Per Serving

Start with a single dish. List every ingredient, the quantity used per batch, and the cost of that quantity. Divide the total recipe cost by the number of servings.

Example — Lemon Herb Roasted Chicken (batch of 10 servings):

Ingredient	Amount	Unit Cost	Recipe Cost
Chicken thighs (bone-in)	5 lbs	$2.80/lb	$14.00
Olive oil	3 tbsp	$0.12/oz	$0.54
Garlic	6 cloves	$0.08/clove	$0.48
Lemon	2 each	$0.65 each	$1.30
Fresh herbs (rosemary, thyme)	1 bundle	$1.20 flat	$1.20
Total batch cost			$17.52
Cost per serving			$1.75

At $1.75 per person for the protein alone, your most expensive component is already set. Do the same for every dish on the menu.

Step 2: Build a Full Plate Cost

A typical plated catering dinner has a main, two sides, a salad, and bread. Each needs its own calculation.

Example — full plate breakdown:

Component	Cost Per Person
Protein (lemon herb chicken)	$1.75
Starch (roasted potatoes)	$0.55
Vegetable (roasted broccoli)	$0.40
Salad (mixed greens + dressing)	$0.65
Bread roll + butter	$0.35
Total raw food cost	$3.70/person

That $3.70 is the starting point — not the final number. There are two more adjustments that most caterers skip.

Step 3: Apply Yield Factors

Raw ingredients shrink during prep and cooking. If you're buying 10 lbs of bone-in chicken to serve 10 people, you're getting roughly 7 lbs of usable meat after trimming and cooking loss. That means your true cost per lb of usable chicken isn't $2.80 — it's $4.00 ($2.80 ÷ 0.70).

Common yield factors to build into your costs:

Ingredient	Approx. Yield
Bone-in chicken (roasted)	65–70%
Ground beef (cooked)	78–82%
Broccoli (trimmed)	65–70%
Mixed salad greens	88–92%
Onions (peeled, diced)	82–85%
Russet potatoes (peeled)	78–80%

When you apply yield factors across a full menu, raw ingredient cost per person typically rises 15–20%. Our $3.70 plate becomes closer to $4.30–$4.45 per person.

Step 4: Add a Waste Buffer

Even with tight prep, things happen. Portions run slightly large. A serving tray gets dropped. Three guests have dietary restrictions you didn't know about and their plates can't be served.

Standard practice is to add 10–15% on top of your yield-adjusted cost:

$4.38 (yield-adjusted) × 1.12 = $4.91 true food cost per person

This buffer also protects you when ingredient prices shift between when you quote and when you shop — and they will.

Step 5: Back Into Your Per-Person Price

Now set your target food cost percentage. For catering, industry benchmarks run:

• Casual buffet or drop-off: 30–35%
• Plated dinner, full service: 28–32%
• Upscale or specialty events: 25–28%

The formula:

Food price per person = Food cost per person ÷ Target food cost %

Using the example above with a 30% target:

$4.91 ÷ 0.30 = $16.37 per person

That's the minimum you should charge for food alone to hit a 30% food cost. Labor, equipment, transport, and profit margin all come on top.

Full Worked Example: Dinner for 50 Guests

A caterer is quoting a birthday dinner: lemon herb chicken, roasted potatoes, broccoli, garden salad, rolls. Here's the complete calculation:

Step	Calculation	Result
Raw food cost per person	Ingredient list	$3.70
After yield adjustment (+18%)	× 1.18	$4.37
After waste buffer (+12%)	× 1.12	$4.89
Total food cost, 50 guests	× 50	$244.50
Minimum food revenue (30% FC)	÷ 0.30	$815.00
Minimum food charge per person	÷ 50	$16.30

Adding non-food costs:

Cost Item	Amount
Food (at 30% food cost)	$815.00
Labor (3 staff × 4 hrs × $18/hr)	$216.00
Delivery + setup	$75.00
Disposables (plates, serving ware)	$55.00
Total quote	$1,161.00
Per person	$23.22

The caterer quotes $24–25 per person, which feels reasonable to the client and actually makes money. Without the food cost math, they might have quoted $18 — and lost $250+ on the event.

Three Mistakes That Quietly Cost Caterers the Most

Quoting from memory, not math. "I know roughly what chicken costs" breaks down every time supplier prices shift. Ingredient prices change weekly. Run the numbers fresh for every event.

Skipping yield on proteins. This is the single biggest mistake. Buying 5 lbs of bone-in chicken and assuming you'll plate 5 servings of 6 oz each leaves you short — or forces you to cut portions. Build yield into the cost upfront, every time.

Using restaurant food cost benchmarks. A restaurant running 30% food cost has table turnover, alcohol margins, and upsells helping the bottom line. Catering is one shot. Many successful caterers target 25–28% food cost to leave room for the unexpected.

Calculate Your Catering Cost Per Person Without the Spreadsheet

If you're building catering quote sheets manually in Excel, you're one formula error or missed yield factor away from quoting an event at a loss.

foodcosting.app lets you build recipes with yield factors built in, scale instantly to any guest count, and see your food cost per person in real time. No spreadsheet maintenance. No broken cell references.

Enter your menu once. Quote accurately every time.

Calculate your catering food cost now →