How to Calculate Food Cost for a Meal Prep Business

July 1, 2026 · 7 min read

If you sell meals, your food cost is the number that decides whether you have a business or an expensive hobby. It's also the number most operators get slightly wrong — not because the math is hard, but because it hides in unit conversions, trim waste, and prices that quietly drift. Here's how to calculate it properly.

The core formula

Food cost is just the cost of the ingredients that go into a dish. Per meal, it's the sum of each ingredient's cost for the amount you actually use:

The trap is the words "quantity used" and "cost per unit." You buy chicken by the pound but use it by the ounce. You buy oil by the gallon but use it by the tablespoon. If the units don't match, the number is wrong — and it's wrong in a way that's easy to miss because it still looks like a plausible dollar figure.

A worked example: the chicken bowl

Say a bowl contains:

• 8 oz chicken breast, bought at $3.89/lb
• 6 oz jasmine rice, bought at $0.75/lb
• 4 oz broccoli, bought at $1.49/lb

Convert each to the purchase unit (pounds), then multiply:

• Chicken: 8 oz = 0.5 lb → 0.5 × $3.89 = $1.95
• Rice: 6 oz = 0.375 lb → 0.375 × $0.75 = $0.28
• Broccoli: 4 oz = 0.25 lb → 0.25 × $1.49 = $0.37

Total food cost per bowl: $2.60. If you sell it for $9.50, your gross profit is $6.90 and your gross margin is 6.90 ÷ 9.50 = 72.6%.

Don't forget waste

The 8 oz of chicken that ends up in the bowl isn't the 8 oz you bought. Trim, shrink, and spoilage mean you have to purchase more than you plate. If 10% of that chicken is lost to trim and waste, the real cost of the usable 8 oz is:

Across a full menu, ignoring waste can understate your food cost by several points of margin. Track a waste percentage per ingredient and apply it, or you'll consistently think you're more profitable than you are.

Food cost percentage and targets

Operators often talk in food cost percentage — food cost ÷ selling price. Our bowl is $2.60 ÷ $9.50 = 27%. As a rough guide:

• Under ~30% — healthy for most meal-prep models.
• 30–35% — workable, but watch it.
• Over ~35% — the dish is probably underpriced or over-portioned.

Your right number depends on your labor, packaging, and delivery costs — food cost is only one slice of the total. But if you don't know it per meal, you can't price anything with confidence.

Keep it from drifting

The hardest part isn't the first calculation — it's keeping it current. Supplier prices change weekly. When chicken jumps from $3.89 to $4.49/lb, every recipe that uses it should reprice automatically, and your margins should update before you commit to next week's menu. A recipe you costed six months ago is telling you a six-month-old story.

Get the unit conversions right, apply waste, and keep prices fresh, and food cost stops being a guess. It becomes the number you plan around.

Figures in this article are illustrative examples — your ingredient costs, yields, and margins will vary. Use your own numbers when you plan.