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Business

Break-Even Calculator

Estimate how many units you need to sell to cover fixed costs.

  • No sign-up
  • Planning scenario only
  • Not accounting, tax, or legal advice

What this calculator does

Use this break-even calculator to estimate the unit sales and revenue needed before a product, service, or campaign starts making profit.

What you need

Fixed costsSelling price per unitVariable cost per unit

This calculator is for business planning estimates. Verify assumptions, accounting treatment, taxes, fees, refunds, and contracts before making important decisions.

Break-Even Calculator

Estimate how many units you need to sell to cover fixed costs.

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How This Calculator Works

Break-Even turns the inputs into a visible formula-based estimate. Use it to compare margin, funnel movement, CAC, revenue, cost, and scenario planning before changing pricing, spend, or operations.

Use this break-even calculator to estimate the unit sales and revenue needed before a product, service, or campaign starts making profit.

Break-even divides fixed costs by contribution per unit. Contribution is price minus variable cost.

Formula

Break-even units = fixed costs / (price per unit - variable cost per unit).

Example Calculation

$5,000 in fixed costs with a $45 contribution per unit requires about 112 units to break even.

When to Use This Calculator

  • Launch a product
  • Price a service package
  • Evaluate campaign economics

Practical Scenarios

  • Run the calculator before changing pricing, spend, hiring, or targets so margin and cash impact are visible. Use case: Launch a product.
  • Compare conservative, base, and optimistic assumptions when revenue, conversion, CAC, or cost can move quickly. Start with Break-Even, then compare the changed result with the original.
  • Use related business calculators when one metric affects the wider funnel, payback, runway, or profit picture. This is especially useful when you need to evaluate campaign economics.

Tips

  • Include all fixed costs
  • Use realistic variable costs
  • Check break-even again after discounts or returns

Common Mistakes

  • Reading revenue as profit before fees, refunds, discounts, labor, taxes, and fulfillment costs are included.
  • Mixing monthly, annual, cohort, and campaign numbers in the same calculation.

Assumptions and Limitations

The Break-Even Calculator is strongest when revenue, cost, margin, period, and funnel assumptions all use the same reporting window. Review the formula, assumptions, and related calculators before using the result in a decision.

  • Refunds, chargebacks, taxes, payment fees, labor, seasonality, and contracts can change real outcomes.
  • The result is a planning estimate, not accounting, tax, legal, or professional advice.
  • Verify assumptions against current records before changing prices, budgets, or strategy.

Break-Even explains break even, fixed costs, unit economics and business through decision context such as margin, period, funnel quality, and cash impact.

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Frequently Asked Questions

Is the break-even result exact?+

It is an estimate based on the inputs you enter. Real-world fees, policies, taxes, timing, and provider rules can change the final number.

Can I use the break-even calculator on mobile?+

Yes. TotalNumbers calculators are designed for mobile, tablet, and desktop screens.

Which margin or funnel inputs change the Break-Even Calculator most?+

Start with fixed costs, selling price per unit and variable cost per unit. If one value is uncertain, run a second scenario rather than treating the first result as exact.

How should I use the Break-Even Calculator when revenue or CAC changes often?+

The Break-Even Calculator is strongest when revenue, cost, margin, period, and funnel assumptions all use the same reporting window. If fixed costs, selling price per unit and variable cost per unit are rough, compare a realistic range before acting.

Can the Break-Even Calculator guide pricing or budget changes?+

Yes, as a decision check. Keep the same reporting period for costs and revenue, then compare conservative, base, and optimistic assumptions.

Disclaimer

This calculator is for business planning estimates. Verify assumptions, accounting treatment, taxes, fees, refunds, and contracts before making important decisions.

Last updated: 2026-05-22