Markup Calculator
Markup calculator to turn cost into selling price. Enter cost and markup percent to get price, profit and margin so you can price products consistently.
Markup Calculator
Result will appear here...
The markup you are actually running
Most markup calculators want a percentage and give you a price. This one runs the other way. You give it a price and a cost, and it tells you the markup you are already charging.
Which is the more useful direction more often than you might think. Prices in a real business rarely come from a formula. They come from what the market bears, what the competition charges, what was on the label last year, and what somebody rounded to a nicer number three summers ago. Whether those prices add up to a coherent markup is a separate question, and usually nobody has checked.
Two boxes, and you get back the markup percentage plus the gross profit in money. Run it across a handful of your products and the pattern that emerges is frequently a surprise.
Two boxes
- Selling Price. What the customer pays, before any sales tax or VAT.
- Total Cost. What the item cost you, landed and ready to sell. There is a section below on what belongs in here, because this is where the answer is won or lost.
Press Calculate and you get two things: the markup percentage, and the gross profit in currency.
The gross profit figure is easy to overlook and worth watching, because a percentage on its own hides the size of the thing. A 200 percent markup on a two dollar item is four dollars of profit. A 15 percent markup on a two thousand dollar item is three hundred. The percentage says one is dramatically better. The cash says otherwise.
Cost is the base, and that is the whole story
Two lines of arithmetic, and neither is complicated.
Gross profit = selling price - total cost
Markup percentage = gross profit ÷ total cost × 100
That second line is the entire definition of markup, and the important word in it is cost. Markup is measured against what you paid, not against what you charged.
Which sounds like a triviality until you see what it does. Buy for 60, sell for 100, and your gross profit is 40. Divide that 40 by the cost of 60 and the markup is 66.67 percent. Divide the same 40 by the price of 100 instead and you get 40 percent, which is a completely different number describing exactly the same sale. That second figure is the margin, and it belongs to a different question.
Because cost is always the smaller of the two numbers, markup always comes out larger than margin. There is no product anywhere, sold at any price above cost, where that is not true.
Three products, three answers
Same shop, three items, and see how differently they behave.
| Item | Cost | Price | Gross profit | Markup |
|---|---|---|---|---|
| Accessory | 4.00 | 12.00 | 8.00 | 200.00% |
| Mid range item | 60.00 | 100.00 | 40.00 | 66.67% |
| Large item | 2,000.00 | 2,300.00 | 300.00 | 15.00% |
By markup the accessory is thirteen times better than the large item. By cash it earns 8 against 300.
Neither number is lying, they are answering different questions. Markup tells you how hard each unit is working relative to the money you tied up in it. Gross profit tells you what actually landed in the till.
A shop needs both. High markup items justify the shelf space they occupy and the capital sitting in them. High cash items pay the rent. Businesses that chase only the percentage end up with beautiful ratios and no money, and businesses that chase only the cash end up with a warehouse full of slow, low margin stock. The useful habit is to run this on your top twenty sellers and look at the two columns together.
Reading the percentage you get back
There is no universal right answer, because markup norms vary enormously by what you sell and how fast it moves.
The tension is always between markup and turnover. A grocer running 20 percent markup on milk that sells out daily can do very well. A jeweller running 200 percent on pieces that sit for eight months might do worse. What matters is markup multiplied by how many times you turn the stock over in a year, not markup on its own.
So the number to compare against is not somebody else's industry average. It is your own, across products and across time. Two questions worth asking of the results:
Is it consistent? If similar products in the same category come back at 80, 45 and 120 percent, you do not have a pricing strategy, you have pricing history. Sometimes there is a reason. Often there is not, and the low one is quietly subsidising the rest.
Has it drifted? Costs move constantly and prices tend not to. A product priced at a 60 percent markup two years ago may be running at 35 today because the supplier raised the invoice three times and nobody revisited the label. This calculator catches that in about ten seconds per product.
It is not your margin, and the gap is wide
Whatever percentage comes back, it is a markup. Your margin is a smaller number, and the gap widens fast as the markup rises.
| Markup | Margin |
|---|---|
| 25% | 20.00% |
| 50% | 33.33% |
| 66.67% | 40.00% |
| 100% | 50.00% |
| 200% | 66.67% |
The conversion is margin = markup ÷ (1 + markup), and going the other way, markup = margin ÷ (1 - margin).
Why it matters practically: your accounts report margin. If your supplier, your buying team or your point of sale system talks in markup and your profit and loss talks in margin, two people in the same business can quote different percentages for the same product and both be correct. Knowing which is which turns a pointless argument into a two second conversion.
It matters even more when you are setting a price rather than checking one. Wanting a 30 percent margin and applying a 30 percent markup lands you on 23.08 percent, and the shortfall is invisible on every invoice. If pricing from a target margin is what you are doing, the margin calculator has a mode for exactly that.
Keystone, and where the doubling rule came from
Ask an old hand in retail what markup to use and a fair number will say double the cost. That convention has a name, keystone pricing, and it survives because it is easy to do in your head and because the number it produces is genuinely convenient.
Doubling the cost is a 100 percent markup, which is a 50 percent margin. Half of every sale is yours to cover overheads and profit, which for a business with a shop, staff and stock sitting on shelves is roughly what it takes to survive.
It is a starting point rather than a rule. Keystone assumes ordinary handling costs, ordinary turnover and ordinary shrinkage. Fast moving staples usually sell below it because volume makes up the difference. Slow, bulky or fragile goods often need more than double, because each unit has to carry months of shelf space and a share of the ones that got damaged.
Run this calculator across your range and you will see where you sit relative to the doubling line, and more usefully, whether the items sitting well below it are there for a reason or by accident.
The cost box is where accuracy is won or lost
The markup percentage is only as honest as the cost you feed it, and the most common mistake is entering the supplier's invoice price and stopping there.
What the item genuinely cost you to have ready to sell usually includes several things beyond that invoice:
- Freight and shipping to get it to you.
- Import duty and customs charges.
- Packaging, labelling and any assembly.
- Direct handling to get it onto the shelf.
Retailers call the total the landed cost, and on anything imported it can run well above the invoice. An item invoiced at 60 that costs 8 to ship and 4 to clear has landed at 72. Price it at 100 and your real markup is 38.9 percent rather than the 66.67 percent the invoice implies, which means you have been running roughly two fifths less profitable than you thought.
What stays out of the box is overhead. Rent, utilities, salaries for people not directly handling the goods, marketing. Those are paid out of the gross profit this calculates, not buried inside the cost of one item. Mixing them in produces a number that is neither markup nor anything else, and it will not reconcile with your accounts.
When the answer comes back negative
Enter a selling price below the cost and the calculator will tell you so plainly, with a negative markup and a negative gross profit. It does not block it, and that is deliberate, because selling below cost is a real thing that real businesses do on purpose.
Clearance is the obvious case. Stock that will not move at any profitable price is still worth converting into cash and shelf space, and a loss you take deliberately beats a loss that sits in the stockroom for another year.
Loss leaders are the other case. Something priced below cost to bring people through the door, on the expectation they buy other things at full price. That works when the basket economics hold up, and it is worth knowing exactly how much each one costs you rather than guessing.
What matters is that the negative is intentional. If a product comes back negative and nobody knew, that is usually a cost that crept up past a price nobody revisited, which is the exact failure this calculator is good at catching.
Questions people ask
How is markup percentage calculated?
Subtract the cost from the selling price to get the gross profit, divide that by the cost, and multiply by 100. Buy for 60, sell for 100, and the markup is 40 divided by 60, which is 66.67 percent.
Is markup the same as profit margin?
No. Markup divides profit by cost, margin divides profit by the selling price. The same sale that gives a 66.67 percent markup gives a 40 percent margin. Markup is always the larger of the two.
How do I convert this markup into a margin?
Divide the markup by one plus the markup. A 50 percent markup is a 33.33 percent margin, and a 100 percent markup is a 50 percent margin.
What should I put in the cost box?
The landed cost, meaning the supplier invoice plus freight, duty, packaging and direct handling. Not rent, wages or marketing, which are overheads paid out of the gross profit rather than part of the item's cost.
Should the selling price include sales tax or VAT?
No. Use the price excluding tax, since the tax is collected on behalf of the government and was never your revenue. Including it inflates the markup by whatever the tax rate happens to be.
What is a good markup?
It depends on how fast the stock turns. A low markup on something that sells daily can beat a high markup on something that sits for months. Judge markup alongside turnover rather than on its own.
What does keystone pricing mean?
Doubling the cost, which is a 100 percent markup and a 50 percent margin. It is a traditional retail starting point rather than a rule, and plenty of categories sit well above or below it.
Can I use this to set a price from a markup I have chosen?
This one measures the markup on a price you already have. To go the other way, from a cost and a target, the margin calculator will take a target margin and return the price and the markup that deliver it.
References
Markup is treated here as the difference between selling price and cost expressed as a percentage of cost, and gross margin as the same difference expressed as a percentage of revenue, following guidance published by the US Chamber of Commerce and the Corporate Finance Institute. The definition of gross profit as receipts less cost of goods sold, and the suggestion to compare a gross profit percentage against a usual markup percentage as a check on sales, purchase and inventory records, follow the Internal Revenue Service's small business guidance. The treatment of markup percentage against retail value in inventory accounting comes from IRS Publication 538.
- US Chamber of Commerce, Pricing Markups Explained: Definition and Similar Terms. https://www.uschamber.com/co/start/strategy/what-are-pricing-markups
- Corporate Finance Institute, Markup: How to Calculate Markup and Markup Percentage. https://corporatefinanceinstitute.com/resources/accounting/markup/
- Internal Revenue Service, Publication 334: Tax Guide for Small Business. https://www.irs.gov/publications/p334
- Internal Revenue Service, Publication 538: Accounting Periods and Methods. https://www.irs.gov/publications/p538
Olga Chernova is an equity research analyst and final year Economics and Finance student at the American University in Bulgaria, with hands on experience in valuation and financial modeling. She has passed CFA Level I and contributed to a 2nd place team in the 2025-2026 CFA Institute Research Challenge in Bulgaria. At Eon Tools, she reviews finance tools.