Enter your fixed costs, price, and cost per sale — and see how many units you need to sell before you turn a profit. Real formulas, a live profit projection, and a revenue-vs-cost chart. Everything runs in your browser; nothing is stored or sent.
100% free — client-side only — nothing is stored or sent
Break-Even Calculator
Enter three numbers. Results update live as you type — no button to press, nothing uploaded.
Break-even units = Fixed Costs ÷ (Price − Variable Cost).
The bottom half — price minus variable cost — is your contribution margin:
the profit each sale contributes toward covering your fixed costs.
Enter your fixed costs, price, and variable cost above to see your break-even point.
How It Works
No black box. Here is exactly what this tool computes and why — the same formulas an accountant or CFO uses.
Every sale brings in the price and costs you a variable amount to fulfill. What’s left
is the contribution margin: Price − Variable Cost. That’s
the dollars each sale contributes toward your fixed costs before any profit.
Divide fixed costs by the contribution margin: Fixed ÷ (Price − Variable).
That’s how many units cover your fixed costs exactly. We round up to a whole
unit — you can’t sell a fraction of a sale and still break even.
If your variable cost is equal to or higher than your price, each sale loses money and there is no break-even point — selling more only digs the hole deeper. Instead of dividing by zero, the tool warns you to fix the price or the cost first.
This is a single-product break-even model. It doesn’t account for taxes, financing, seasonality, changing prices at volume, or a mix of products. It’s a fast, honest starting point — not a full financial forecast. Use it to sanity-check, then model deeper.
Go Deeper
Break-even is one number. If you need a full financial model, the right price, or a plan you can hand to a lender or investor, our finance team builds it with you.
Revenue, costs, cash flow, and scenarios in one connected model — so you can see runway and profitability, not just a single break-even figure.
Ongoing financial leadership without a full-time hire — someone to own the numbers, watch the margins, and steer the decisions month to month.
If your margin looks thin, the price may be the problem. We analyze costs, value, and the market to set prices that actually leave you a profit.
When you need more than a calculator — a complete, investor-ready or lender-ready business plan with the financials built in.