Your signature dish is flying — but the food rep just raised chicken by 15% and your margin report hasn't looked right for two weeks. Time to run the numbers.
Food cost % = (Ingredient cost per serve ÷ Selling price) × 100
Industry benchmarks: food cost % should be 28–35% for restaurants, 25–30% for cafés. Gross profit margin (after ingredient cost only) should be 65–72%+. Labour and overhead are additional. If food cost % is above 40%, review your pricing, portion sizes or supplier costs.
1 What this calculator does
Calculates food cost percentage from total ingredient cost and selling price, and reverse-calculates the selling price needed to hit a target food cost percentage. Hospitality standard is 25–35% food cost for full-service restaurants.
2 Formula & professional reasoning
Food cost % = (Ingredient cost ÷ Selling price) × 100 | Required price = Ingredient cost ÷ (Target food cost % ÷ 100)
Food cost percentage tells you how many cents in every dollar of revenue goes to ingredients. Lower is not always better — a 20% food cost item may have lower perceived value; 30–35% on premium dishes drives revenue and guest satisfaction. The formula works in reverse to price menus: divide your ingredient cost by your target food cost percentage.
3 Worked examples
⚠️ Illustrative example only — not clinical or professional instruction.
4.80 ÷ 18 × 100 = 26.7%$6.50 ÷ 0.30$42.50 ÷ $180 × 1004 Sanity check
5 Common errors
| Error | Cause | Consequence | Fix |
|---|---|---|---|
| Using retail not supplier cost | Estimating from supermarket prices | Food cost under-stated by 20–40% | Use your actual supplier invoice prices, updated weekly |
| Not including garnishes and sauces | Costing main protein only | True food cost 3–8% higher than calculated | Cost every component including oil, salt, sauce, garnish — they add up |
| Not accounting for wastage | Using raw weight not usable yield | Under-costing especially on protein and vegetables | Apply a yield factor: 1 kg beef mince may have 90% yield after cooking — use 0.9 |
| Ignoring portion control drift | Not weighing portions consistently | Food cost creep of 2–5% | Weigh portions at service, spot-check weekly, train kitchen on portion sizes |
6 Reference & regulatory links
7 Professional workflow
Common tools used alongside this one: