Food cost calculator

Free tool · no signup · runs in your browser · Last updated: October 21, 2026 · By the Varastiq team

Key takeaway: Food cost % = (beginning inventory + purchases − ending inventory) ÷ food sales × 100. Enter those four numbers below to get COGS and your food cost %. Add your theoretical food cost (recipe cost × items sold) and the calculator also shows your variance: the dollars that left the kitchen without a sale behind them, per period and per year.

How do you use the food cost calculator?

1. Choose weekly or monthly. Use the same period you count on. The calculator uses it to turn results into yearly dollars.
2. Beginning inventory. The dollar value of all food on hand when the period started. It should equal last period's ending count.
3. Food purchases. The total of every food invoice received in the period. Leave out beverages, paper goods and cleaning supplies.
4. Ending inventory. The dollar value of food on hand from your end-of-period count.
5. Food sales. Net food sales from your POS for the same days. Use food sales only, not total sales, if you also sell drinks.
6. Theoretical food cost (optional). What food should have cost, given what you sold: each item's recipe cost × the number sold, added up. If you don't have it yet, leave it blank. The plate cost calculator and recipe cost calculator help you build it.

What is the food cost formula?

COGS = Beginning inventory + Purchases − Ending inventory
Food cost % = COGS ÷ Food sales × 100

In a spreadsheet, with beginning inventory in B1, purchases in B2, ending inventory in B3 and food sales in B4: =(B1+B2-B3)/B4, formatted as a percentage.

COGS (cost of goods sold) is the food you used, not the food you bought. That's why inventory is in the formula. If you bought $9,800 of food but your shelves got $500 fuller, you only used $9,300. The step-by-step guide covers edge cases like transfers and staff meals: how to calculate food cost percentage.

What does the variance output mean?

Actual food cost tells you what happened. Theoretical food cost tells you what should have happened if every plate matched its recipe and nothing was wasted, comped or walked out the door. The difference is variance:

Variance $ = Actual COGS − Theoretical food cost
Variance (points) = Actual food cost % − Theoretical food cost %

A small positive variance is normal, since some waste is unavoidable. A large or growing one points to over-portioning, unlogged waste, missing invoices, count errors or theft. To find which items are causing it, use the food cost variance calculator. The concept is explained in full in theoretical vs actual food cost.

What does a worked example look like?

A neighborhood bistro runs a weekly count. Last week:

• COGS = $12,400 + $9,800 − $11,900 = $10,300
• Food cost % = $10,300 ÷ $33,000 = 31.2%
• Theoretical food cost % = $9,500 ÷ $33,000 = 28.8%
• Variance = $10,300 − $9,500 = $800 this week, or 2.4 points
• At 52 weeks, that's $41,600 a year in food the recipes can't account for.
• One point of food cost at this volume is $330 a week, or $17,160 a year.

The 31.2% on its own might look fine. The $800 a week is the part worth chasing.

What is a good food cost percentage?

There's no single right number. It depends on your concept, menu mix and prices. Two published reference points:

• The National Restaurant Association reported median food and non-alcoholic beverage costs of 32.0% of sales for full-service and 32.4% for limited-service restaurants in 2024 (Restaurant Operations Data Abstract, 2025 edition).
• Toast describes 28–35% as a typical "commendable" range in its benchmarking guide.

Note that the NRA figures are a share of total sales and include non-alcoholic beverages, while the calculator above uses food sales. A better target than any industry median is your own theoretical food cost. If your actual is close to your theoretical, your kitchen is running to recipe, whatever the percentage.

Why is my food cost number wrong?

• Mismatched periods. Sales from Monday to Sunday, invoices from the 1st to the 31st.
• A missing invoice. Purchases look low, so food cost looks great, until next period.
• Beverages mixed in. Beer and wine invoices counted as food.
• Guessed counts. A partial case eyeballed as full adds dollars to ending inventory and lowers COGS.
• Inventory valued at old prices. If the count uses last quarter's prices, the dollar value is off.

How does Varastiq calculate food cost automatically?

In Varastiq, the four inputs fill themselves in. Beginning and ending inventory come from counts in the Stiq app, valued at your latest invoice prices. Purchases come from invoice capture. Sales come from Toast (read-only) or an uploaded sales report from a supported sales export. Because recipes are costed live, Varastiq also knows your theoretical food cost and flags variance during the count, not at month-end.

Frequently asked questions

How do you calculate food cost percentage?

Add beginning inventory and purchases, subtract ending inventory to get cost of goods sold, then divide by food sales and multiply by 100.

What is theoretical food cost?

Theoretical food cost is what your food should have cost based on what you sold: each menu item's recipe cost multiplied by the number sold, added up for the period.

What is the difference between actual and theoretical food cost?

Actual food cost comes from inventory counts and purchases. Theoretical food cost comes from recipes and sales. The gap between them is variance, caused by waste, over-portioning, missing invoices, count errors or theft.

Should I use food sales or total sales?

Use food sales when you calculate food cost percentage. Track beverage cost separately against beverage sales.

How often should I calculate food cost?

Weekly gives you time to act. Monthly matches most accounting periods but makes problems harder to trace.

What does one point of food cost mean in dollars?

One point equals 1% of food sales. At $33,000 of weekly food sales, one point is $330 a week, or $17,160 a year.

Does this calculator save my numbers?

No. Everything runs in your browser and nothing you enter is sent anywhere.

Sources

• National Restaurant Association, "Restaurant operators kept food cost ratios in check in 2024," analysis of the 2025 Restaurant Operations Data Abstract. National Restaurant Association. Accessed October 20, 2026.
• Toast, "Benchmarking Restaurants: How to Calculate 8 Key Benchmarks." pos.toasttab.com/blog. Accessed October 20, 2026.

Related free tools

Food cost variance calculator · Plate cost calculator · Recipe cost calculator · Menu pricing calculator · Prime cost calculator · All tools

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