Free Food Cost Percentage Calculator
Plug in your beginning inventory, purchases, ending inventory, and food sales. The calculator returns your food cost percentage and flags whether your margin is healthy, at risk, or already bleeding.
Food cost calculator
Run the formula on your own weekly numbers.
Cost of goods sold (COGS)
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Food cost percentage
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Tip: use weekly numbers and food sales only (excluding beverage). Compare your percentage against the healthy bands listed in the next section for your restaurant format.
Why your food cost percentage matters
How to use the calculator
The math takes five inputs and runs in your browser. No data leaves the page.
- 1
Open your last full week. Pull beginning inventory from your stock count on Monday morning, in dollars at cost.
- 2
Sum all food purchases delivered during the week. Include credit notes as negatives and exclude beverages if you track those separately.
- 3
Pull ending inventory from the following Monday's stock count, in dollars at cost.
- 4
Enter total food sales for the same week from your POS - net of comps, voids, and discounts.
- 5
Read the result. The calculator returns your food cost percentage and tells you which benchmark band you fall into for your format.
The food cost percentage formula
The formula every operator should know by heart:
Food Cost % = (Beginning Inventory + Purchases - Ending Inventory) / Food Sales × 100
The numerator is your cost of goods sold (COGS) for the period. The denominator is your food sales for the same period. Run it weekly and the trend tells you whether your kitchen is tightening or drifting. The single biggest mistake operators make is calculating this monthly - by the time you see a four-point miss, it has cost you a month of margin.
Healthy benchmarks by restaurant format
These are the bands operators in each format target. Above the high end of your band, the menu needs reengineering or the supply chain needs renegotiating. Below the low end, you are probably underselling - quality is being clipped.
| Format | Healthy band | Notes |
|---|---|---|
| Fine dining | 28-32% | Premium ingredients, smaller spec yields - higher target than QSR. |
| Casual full-service | 28-33% | The classic bistro / neighbourhood Italian band. |
| Pizzeria | 22-28% | Dough economics make low food cost achievable. |
| Quick-service restaurant | 25-30% | Volume and tight portion control hold the line. |
| Bar / pub kitchen | 30-35% | Smaller menu, less buying leverage; offset by beverage margin. |
| Hotel F&B | 30-36% | Complex menu mix and higher waste at scale push this up. |
A worked example
A 70-cover neighbourhood bistro running an average week:
- Beginning inventory: $8,400
- Purchases: $18,200
- Ending inventory: $7,900
- Food sales: $62,500
COGS = $8,400 + $18,200 - $7,900 = $18,700
Food cost % = $18,700 / $62,500 = 29.9%
That lands inside the 28-33% casual full-service band. Healthy. If next week it climbed to 33.5% the action is not a panic - it is to pull the top 10 dishes by volume in the menu engineering matrix and check whether costs moved on any of them.
Frequently asked questions
What is a good food cost percentage for a restaurant?+
It depends on format. Casual full-service typically targets 28-33%, fine dining 28-32%, pizzeria 22-28%, QSR 25-30%, bar kitchens 30-35%, hotel F&B 30-36%. The right answer for your restaurant is whichever band lets you hit the prime cost target (food + labour ≤ 60% of sales) that makes the P&L work.
How often should I run this calculation?+
Weekly, on a fixed day. Monday morning is what most operators use because it follows a complete sales week. Monthly is too late - by the time a four-point miss shows up you have lost a month of margin. Daily is overkill unless you are running a tight pop-up or correcting a specific failure.
Should beverages be in the calculation?+
No. Beverages (especially alcohol) have a completely different cost structure and should be tracked as a separate beverage cost percentage. Mixing them into food cost obscures both numbers. Most POS systems can split the sales side; your inventory count needs to do the same.
What if I do not have a beginning inventory?+
Take a count today and call it your beginning inventory. Take another count one week from today and call it your ending inventory. You are now running the calculation. If you want a number for this week without waiting, use last week's purchases as a proxy for COGS - it will be roughly right if your stock levels are stable.
Why does my food cost percentage swing so much week to week?+
Three common causes. First, a stock count error in either week (most likely). Second, a large bulk purchase that has not been consumed yet. Third, a real margin event (a price increase from a supplier, a menu shift, a spike in waste). Run a 4-week rolling average alongside the weekly number to separate noise from signal.
Does this calculator store my data?+
No. The calculator runs entirely in your browser. Nothing is sent to a server, nothing is logged, nothing is stored after you close the page. You can use it on commercially sensitive numbers without exposure.
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