Profit Margin Calculator
Find profit and margin from revenue and cost.
Runs in your browser. Nothing is uploaded — your input is processed on this device and discarded when you close the tab.
Profit Margin Calculator
How to use this tool
- Enter revenue and cost in the same currency.
- Press Generate to see profit and margin percentage.
- Change cost to see how sensitive margin is to it.
Worked example
With revenue 1000 and cost 700, profit is 1000 - 700 = 300 and margin is 300 / 1000 = 30%.
What this tool does not do / Limits
This is an estimate from the figures you enter, not financial advice. It uses only the revenue and cost given, so overheads, tax and one-off items left out will change a real margin.
Frequently asked questions
How is margin different from markup?
Margin divides profit by revenue, while markup divides profit by cost, so the same sale gives different percentages.
Can margin be negative?
Yes: if cost exceeds revenue, profit and margin both go negative, which means a loss.
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