Enter your cost and price to see profit, markup %, and margin % — or work backward from a target margin to find the price you should charge. Real formulas, honest math, and a plain-English explanation of the difference most people get wrong. Everything runs in your browser; nothing is uploaded or stored.
100% free — client-side only — nothing is stored or sent
Markup & Margin Calculator
Results update live as you type — no button to press, nothing uploaded.
Markup % = Profit ÷ Cost and Margin % = Profit ÷ Price.
Same profit, different denominator — that’s why the two numbers never match.
Enter your cost and selling price above to see profit, markup %, and margin %.
Price = Cost ÷ (1 − Margin%).
A margin can never reach 100% — that would require an infinite price for a finite cost.
Enter your cost and a target percentage above to see the price to charge.
How It Works
No black box. Here is exactly what this tool computes — and the pricing pitfalls worth knowing before you set a number.
Both start from the same profit. Markup is that profit as a percent of
your cost (Profit ÷ Cost). Margin is the same
profit as a percent of your price (Profit ÷ Price). A 50% markup
is only a 33% margin — mixing them up quietly costs money.
Margin is profit divided by price, and price always includes your cost. To reach a 100% margin you’d need a zero cost or an infinite price. Markup, by contrast, has no ceiling — a 300% markup is perfectly ordinary. This tool blocks impossible 100%+ margins rather than returning a nonsense price.
Unit cost is rarely the whole story. Shipping, card fees, packaging, returns, storage, and your own time all eat into real margin. Build those into the cost you enter here — a price that only covers the sticker cost can still lose money once the rest is counted.
Cost-plus gives you a floor, not the right answer. What customers will pay depends on the value, the alternatives, and how you’re positioned. Use this calculator to know your numbers — then decide the price with the market in mind, not just the spreadsheet.
Keep Going
Markup and margin tell you the health of a single sale. Pair them with the break-even point to see the whole picture — or browse the rest of the free tools.
Margins tell you the profit per sale. The break-even calculator tells you how many sales you need before those margins start covering your fixed costs.
Open the calculator →Browse the rest of the free calculators and business tools — all client-side, all honest math, no sign-up required.
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