OomTools

Profit Margin Calculator

From a selling price and a cost, this gives you the profit, the margin and the markup together, so you can price a product and confirm it's actually earning. It runs privately in your browser and isn't financial advice.

  • 100% free
  • Private & safe
  • Runs in your browser
Read our complete guide: How to Calculate Product Net Profit Margins for Shopify & Etsy Sellers

Why use Profit Margin Calculator?

Profit Margin Calculator gives you accurate results instantly, with the underlying formula shown so you can trust the numbers.

  • Runs instantly in your browser — nothing to install, nothing uploaded.
  • Completely free, with no account, no watermarks and no usage limits.
  • Handles Margin % = (revenue − cost) ÷ revenue × 100; Markup % = (revenue − cost) ÷ cost × 100.
  • Enter your revenue (selling price) and cost.
  • Works on any device — desktop, tablet and phone — and is fully keyboard accessible.

How to use Profit Margin Calculator

  1. Enter your revenue (selling price) and cost.
  2. See the profit, margin percentage and markup percentage.
  3. Adjust the price to hit a target margin.
  4. Copy the results for your pricing sheet.

Examples

  • A product sold for $500 that costs $300.
  • Setting a price to achieve a 40% margin.

Formulas

  • Margin % = (revenue − cost) ÷ revenue × 100
  • Markup % = (revenue − cost) ÷ cost × 100

Limitations

  • Considers unit economics only; overheads and taxes are separate.
  • Not financial or accounting advice.

Frequently asked questions

What is the difference between margin and markup?

Margin is profit as a percentage of the selling price; markup is profit as a percentage of the cost.

Can it target a margin?

Adjust the selling price until the margin matches your goal, or use the Markup Calculator.

Is this financial advice?

No, it is informational only.

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