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Margin & Markup Calculator

Enter a cost and selling price to see profit, margin (profit over price), and markup (profit over cost) side by side.

Runs locally in your browser. This tool does not upload your input.

Inputs

Results

Profit
20
Margin
20%
Markup
25%

Margin is profit over price; markup is profit over cost — that's why they differ.

How margin and markup differ

Enter a cost and a selling price to see profit, margin (profit over price), and markup (profit over cost) side by side.

Margin vs. markup

Margin divides profit by the selling price; markup divides the same profit by the cost. The two match only when profit is zero, and grow further apart as the profit percentage increases.

Common uses

  • Price a product to hit a target margin.
  • Check whether a markup convention matches the margin your finance team expects.
  • Compare pricing strategies across products with different costs.

Worked example

A product costing $80 sold for $100 has $20 profit: a 20% margin (20/100) but a 25% markup (20/80) — the same profit, two different percentages.

Calculation notes

All math runs in your browser; the cost and price you enter are never sent anywhere.

FAQ

Why are margin and markup different for the same sale?

Margin is profit divided by price; markup is the same profit divided by cost. Since price is always higher than cost when there's a profit, markup is always the larger percentage.

What if cost is 0?

Markup would be undefined (division by zero), so the calculator shows a symbol for infinite markup instead of a number.

Which one should I use to set my price?

If your target is a percentage of revenue, use margin. If your target is a markup over cost (common in retail and manufacturing), use markup — plugging the same profit into the wrong formula will misprice the product.