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Food Cost Calculator

What does a slice of tomato actually cost you? Find out in seconds.

I chased a blended food cost percentage for five years. It hid everything — my $6 chicken breast was subsidizing a $22 filet I was losing money on. This calculator shows you what's actually happening, item by item, the way I wish someone had shown me. Read why I built this →

Calculate Ingredient Cost

$
per
portions from

Q-Factor (Waste Adjustment)

Accounts for trim, peel, seeds, cooking shrink. Higher waste = higher true cost.

% waste Q = 1.11
Cost Per Portion
$0.97
per slice
$3.50/lb (purchase price)
× 1.11 Q-factor (10% waste adjustment)
$3.89/lb (true cost after waste)
÷ 4 portions (from 1 lb)
= $0.97 per slice
Now what? Multiply this by how many you sell per week. That's your real exposure on this item. If it's over $200/week and your food cost % on this dish is above 33% — that's your first target. I've seen single-item fixes recover $3,800/year. Learn perpetual tracking →

What is Q-Factor?

The Q-factor (or waste factor) accounts for the difference between what you buy and what you can actually serve.

When you buy a tomato, you throw away the stem, the core, and maybe some bruised spots. That's 10% waste. Your true cost per usable ounce is higher than the sticker price.

Formula: Q = 1 ÷ (1 - Waste%)

10% waste → Q = 1.11 (you pay 11% more per usable unit)
32% waste → Q = 1.47 (you pay 47% more per usable unit)

Common Q-Factors

IngredientWasteQ-Factor
Fish fillet5%1.05
Carrot8%1.09
Chicken breast8%1.09
Tomato10%1.11
Garlic10%1.11
Potato12%1.14
Mushroom12%1.14
Onion15%1.18
Apple15%1.18
Bell pepper18%1.22
Lettuce20%1.25
Beef chuck20%1.25
Celery20%1.25
Broccoli25%1.33
Spinach30%1.43
Chicken (whole)32%1.47
Whole fish35%1.54
Brisket (smoked)40%1.67
Watermelon45%1.82
Lobster (whole)50%2.00

See Your Numbers — Free

This calculator does one ingredient. The full card builder does your whole recipe — all ingredients, waste, and total margin in 30 seconds.

Cost a Recipe Free →

Know your real food cost?

Most operators are 2–4 points higher than they think. This tool catches the drift before your P&L does.

Send your menu to joe@myrecipecard.kitchen — I’ll send back what your numbers actually look like. No demo. No pitch. Just your menu, your math.