Profit Margin Calculator
Find your margins and markups instantly
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You buy something for 12 and sell it for 20. Is that a 40% margin or a 67% markup? Both, and confusing the two is how small businesses price themselves into trouble. The Profit Margin Calculator gives you each figure and shows which one you are actually looking at.
Short answer: The Profit Margin Calculator is a free EizTools tool that works out gross margin, markup and profit per unit. Give it your cost and selling price, and it returns both percentages with the formula shown.
What is Profit Margin Calculator?
It converts cost and price into the percentages you need for pricing decisions. Describe the product in the prompt box and the Profit Margin Calculator returns the profit per unit, the margin as a share of the selling price, and the markup as a share of cost.
Margin, Markup And Why They Differ
| Term | Measured against | On a 12 cost and 20 price |
|---|---|---|
| Profit per unit | Nothing, it is a money figure | 8 |
| Gross margin | The selling price | 40% |
| Markup | The cost price | 67% |
Suppliers quote markup. Accountants and retailers talk in margin. When someone says "we work on 50%", the answer to what you should charge depends entirely on which they meant, and the gap gets wider as the percentage rises.
Both figures at once
Margin and markup come back together, so there is no ambiguity about which number is on the table.
Formula visible
Set Format to Formula + Result and the equations appear next to the answers.
Target pricing
Ask for the price needed to hit a target margin and it works the sum backwards.
Format And Detail Level
Calculation Type set to Finance keeps the language in business terms. Format is the control that changes the layout: Formula + Result suits pricing work, while Table is better when you are testing several price points in one run. Detail Level decides how much explanation comes with the numbers, and a middle setting usually gives enough to act on.
How Does Profit Margin Calculator Work?
A craft seller is pricing a range of ceramic mugs.
- Type it plainly: "mug costs 12 to make and pack, I want a 45% margin, what should I charge?"
- Select a model from the dropdown at the top.
- Pick Finance, ask for Formula + Result, and hold the precision at 2 Decimals.
- Switch Show Formula on, with Explain beside it.
- Generate. The answer gives the price, the profit per mug and the equivalent markup.
- Run it again including a 15% marketplace fee to see the real margin after commission.
That second run is where most sellers find their problem. A 45% margin before fees can be under 30% once a platform takes its cut and postage is included, and the two runs sit side by side in the activity history.
Include everything Cost means the full cost: materials, packaging, postage, platform fees and the time you paid someone to make it. A margin built on materials alone looks healthy and disappears the moment real costs arrive.
Mistakes That Cost Money
- Applying a supplier's markup percentage as if it were your margin
- Leaving payment processing and marketplace fees out of the cost figure
- Setting one margin across a whole range when postage varies by item
- Pricing from what competitors charge without checking your own cost base first
EizTools runs a free tool for each job with no account, and a choice of AI model families on every page. Pricing work leads straight into billing, so the Invoice Generator is the natural next step once the numbers are agreed. The rest of the catalogue sits in the tool library.
Frequently Asked Questions
What is the difference between margin and markup?
Margin is profit as a share of the selling price. Markup is profit as a share of the cost. The same deal produces two different percentages, and markup is always the larger number.
Can the Profit Margin Calculator work out a price from a target margin?
Yes. Say the cost and the margin you want, and it returns the price you need to charge. That is usually more useful than checking a price you already set.
Should fees be part of the cost?
Yes, if you want a margin that reflects reality. Include packaging, postage, payment processing and any marketplace commission. Leaving them out is why a product can look profitable on paper and lose money on every order.
Does it handle net margin as well as gross?
Gross margin is the default, covering the direct costs of the item itself. For net margin, mention your overheads in the prompt, such as rent and software, so those are pulled into the calculation too.
Pricing decisions are easy to get wrong by a percentage point that turns out to matter. Work from full costs, ask for margin and markup together, and check what is left after the fees rather than before them.
Sabir Bepari
Founder of EizTools and a passionate AI enthusiast dedicated to building practical, user-friendly AI tools that simplify everyday tasks.
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