Profit Margin Calculator
Calculate gross profit and gross margin from revenue and cost, with markup on cost. Losses shown honestly. Free profit margin calculator.
How to Use the Profit Margin Calculator
- 1Enter the revenue and the cost of goods sold (COGS).
- 2Choose a display currency; formatting only, no currency conversion.
- 3Read the gross profit or loss, gross margin and markup on cost, then copy or reset.
About the Profit Margin Calculator
Gross margin shows what share of revenue remains after direct costs. Revenue of 1,000 with a cost of 600 leaves a gross profit of 400 and a gross margin of 40%. A cost above revenue produces a negative margin, which this calculator shows as a loss rather than hiding it. Gross margin is not net margin: net margin also subtracts operating expenses, interest and tax, so it is always lower for the same business.
Why Use This Tool
100% free with no sign-up or login required
Runs in your browser — your data stays private
Accessible from modern mobile and desktop browsers
Frequently Asked Questions
Subtract cost from revenue, divide by revenue and multiply by 100. Revenue of 1,000 and cost of 600 give a 40% gross margin.