Pricing math for people who run stores

20 free calculators for pricing, inventory and day-to-day store numbers, for owners, managers and buyers who want the right answer without opening a spreadsheet.

Pricing and margin

Set prices, protect your margin and see what a sale or a cost increase really does.

Markup and margin calculator
Turn a cost and a price into margin and markup, or price an item to hit the margin you want.
Case cost to unit price calculator
Go from a case invoice to a cost per unit and a shelf price that keeps your margin.
Sale price and margin calculator
See what a percent-off sale does to your margin and how many more you'd have to sell.
Cost increase calculator
Supplier raised the cost? Find the new price that keeps your margin.
Gross profit calculator
Get gross profit and gross margin from sales and cost of goods, plus net profit after expenses.
Break-even calculator
See how many sales it takes to pay off a cooler, a display fee or any other fixed cost.
Unit price calculator
Compare price per ounce, liter or item across sizes and multipacks.
Sales tax calculator
Add tax to a price, or back the tax out of a total that already includes it.

Inventory

Know what your stock costs you, how fast it moves and what's walking out the door.

Cost of goods sold calculator
Work out cost of goods sold from your inventory counts and purchases.
Shrink rate calculator
Measure shrink in dollars and percent, and the sales it takes to make it back.
Inventory turnover calculator
See how many times your stock turns over and how many days of it you're holding.
GMROI calculator
Find out how much gross profit each dollar of inventory earns you.
Sell-through rate calculator
See how much of what you received has sold, and how long the rest will last.
Reorder point calculator
Know when to reorder so you don't run out before the truck comes.

Store operations

Labor, floor space, card fees, fuel, the cash drawer and the size of the average sale.

Labor cost percentage calculator
See labor as a percent of sales and sales per labor hour.
Sales per square foot calculator
Measure how hard your floor space works, in sales and profit per square foot.
Average transaction value calculator
Find your average sale per customer and what a small add-on is worth.
Credit card processing fee calculator
See what each card sale costs you in fees and what you actually keep.
Fuel margin calculator
Work out fuel margin in cents per gallon, before and after card fees.
Cash drawer calculator
Count the till by bills and coins and check if you're over or short.

Check the math yourself

Every calculator shows its formula and a worked example, so you can see exactly how a number was reached and check it against your own records. They run entirely in your browser. Nothing you type is sent anywhere or saved.

The most common pricing mistake is treating markup and margin as the same thing. If you only read one page here, make it the markup and margin calculator.