Determines the exact unit volume or revenue required to cover fixed and variable costs, with presets for common business types. Essential for startup pricing strategy, product launch planning, and manufacturing cost analysis where knowing your break-even point is critical before committing to production. Figures never leave your device — every calculation runs locally in your browser.
Content reviewed October 2026 · About Toolzum
Compute gross margin from revenue and costs — know exact profitability. A $30 sale at $20 cost margins 33% — free, local, no signup.
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Three main inputs: fixed costs (rent, salaries, equipment), variable cost per unit (materials, labor per unit), and selling price per unit. The calculator computes break-even in both units and revenue.
There is no slider — type a new selling price into the price field (or try a preset) to answer 'what if I raise/lower my price?' Each edit recomputes instantly.
It shows break-even units, break-even sales, contribution margin, and CM ratio — no profit-at-volume table. To model a volume above break-even, multiply your units by the shown contribution margin.
Yes. Enter your monthly fixed costs and set variable cost to zero (or per-client cost). The break-even point shows how many clients or projects you need to cover costs.
Fixed costs $10,000, price $50, variable cost $30: contribution is $20 per unit, so break-even is 10,000 ÷ 20 = 500 units. Sell unit 501 onward and every $20 is profit.
No. All calculations run locally in your browser. No cost or pricing data is transmitted.
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.
ROI Calculator
Measures return on investment by comparing net gain or loss against the original cost, expressed as both a percentage and a dollar amount. Essential for marketing campaign evaluation, equipment purchase decisions, real estate investment analysis, and comparing investment opportunities.