Profit Margin Calculator
Compute gross margin from revenue and costs — know exact profitability. A $30 sale at $20 cost margins 33% — free, local, no signup.
How to Use the Profit Margin Calculator
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Frequently Asked Questions
Gross vs net margin?
Gross subtracts direct costs (COGS); net subtracts everything including overhead and tax. The tool computes gross margin and markup only — a 60% gross can hide a 5% net, so track net separately.
What margin is healthy?
Varies wildly: software 70%+, retail 2–5%, restaurants 5–10%. Compare within industry, never across.
Improving margins?
Raise prices, cut COGS, or drop losing products — in that order of effort. The calculator models each lever instantly.
Is financial data uploaded?
No — math runs locally in your browser. Figures never leave your device.
What do the default cost and revenue give?
Cost $100 on $150 revenue = $50.00 profit, 33.33% gross margin, 50.00% markup, and a 66.7% cost ratio. The presets span Retail ($50/$100), SaaS ($10/$50 = 80%), Restaurant ($7/$20), and Agency ($3,000/$5,000) — run your numbers beside the closest match.
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Compute profit and loss from revenue, costs, and expenses with margin percentages. Close the month knowing exact numbers — free, local, no signup.
Last updated October 2026