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Profit Margin Calculator
Profit Margin Calculator
What is this tool?
A focused profit-and-loss margin calculator. Enter your core numbers and it computes revenue, cost of goods sold, gross profit and margin, and net profit and margin after fixed costs — visualized as a P&L waterfall chart.
When to use it
- Understanding how much profit margin survives after fixed costs
- Comparing gross margin against your cost structure
- Getting a quick profitability snapshot without building a spreadsheet
- Checking whether a price change meaningfully moves your margin
- Explaining a product's unit economics to a stakeholder
How to use it
- 1Enter your price per unit and cost per unit (COGS)
- 2Enter your monthly sales volume
- 3Enter your fixed costs per month
- 4Read the gross margin, net margin, and monthly profit figures
- 5Adjust any input and watch the chart and results update instantly
Frequently asked questions
What's the difference between gross margin and net margin?
Gross margin is profit after cost of goods sold, as a percent of revenue; net margin also subtracts fixed costs, giving the bottom-line percentage.
Is this suitable for a full business plan?
It's a quick unit-economics check, not a substitute for a full financial model — good for sanity-checking numbers before deeper planning.
Is my financial data sent anywhere?
No — every calculation happens locally in your browser.