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Break-Even Calculator

Find how many units you must sell to cover fixed and variable costs.

Results are estimates for planning purposes only. See our Disclaimer. Last reviewed: October 2026.

About the Break-Even Calculator

This free break-even calculator helps people in the United States get a quick, private estimate before they talk to a lender, insurer, employer or advisor. There is no signup, nothing is stored on our servers and every result updates instantly in your browser.

How this calculator works

Break-even units equal fixed costs divided by contribution margin per unit (price minus variable cost). Revenue is units times price.

Worked example

Fixed costs $10,000, price $50 and variable cost $30 gives a $20 margin, so 500 units and $25,000 revenue are needed. Change any input above to see how the result moves, which is the fastest way to understand which factor matters most for you.

Tips to get a better result

Lower fixed costs, raise price or cut variable cost to reach break-even sooner. Revisit the calculation when costs change.

Key factors that change your result

Break-even units equal fixed costs divided by contribution margin (price minus variable cost). Raising price, cutting variable cost or lowering fixed cost all move the break-even point down. Review it whenever your costs change.

Accuracy and limits

Every calculator on Tools30 uses standard published formulas combined with average US market assumptions. Real results depend on your personal circumstances, so treat the output as a starting point and confirm with a qualified professional. Read more on our methodology page.

Frequently asked questions

What are fixed vs variable costs?

Fixed costs such as rent stay constant, variable costs rise with each unit.

Why does break-even matter?

It shows the minimum sales needed to avoid losing money.

Is the break-even calculator free to use?

Yes. Every calculator on Tools30 is free with no registration.

Do you store the numbers I enter?

No. Calculations run in your browser and nothing you type is sent to our servers.

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