Finance category
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Break-Even Calculator
Find how many units you need to sell to cover fixed costs, how much revenue that requires, and how sales volume changes when you target extra profit.
Break-even units
444.44
Break-even revenue
$20,000.00
Contribution margin
$27.00
Units for target profit
629.63
EveryCalc calculators are designed for fast, practical estimates with transparent inputs and no required account. We use plain formulas, visible assumptions, and related tools so visitors can check the result from more than one angle.
Results are informational only. For financial, tax, legal, medical, construction, or other high-impact decisions, verify the output against primary sources or a qualified professional.
Learn more about our review process on the EveryCalc methodology page.
Calculation notes and example
Break-even formula used here
Break-even units equal fixed costs divided by contribution margin per unit. Contribution margin is selling price minus variable cost. Break-even revenue equals break-even units × selling price. To include a target profit, add the target profit to fixed costs before dividing by contribution margin. This keeps fixed costs, variable costs, and pricing decisions clearly separated.
Worked example
A product sells for $80 and has $35 of variable cost, leaving $45 contribution margin. If monthly fixed costs are $18,000, break-even is 400 units. To earn $9,000 of profit, the business needs 600 units. If sales commission or payment processing increases variable cost, contribution margin falls and the required volume rises. That is why this tool pairs well with margin and sales commission planning.
Edge cases and practical tips
- Use realistic capacity limits; break-even units may exceed what the team can produce or sell.
- Separate one-time startup costs from recurring fixed costs when looking at monthly break-even.
- For multiple products, use weighted average contribution margin or model each product separately.
Useful companion tools: Sales Commission Calculator, Business Loan Calculator, ROI Calculator, and CAGR Calculator.
How to interpret the break-even result
Best use
Use the result as a planning number for comparing payments, rates, returns, tax reserves, or cash-flow choices before you request a quote or make a commitment.
Cross-check
Compare the answer with the contract, lender estimate, tax form, brokerage statement, payroll record, or invoice that will control the real-world outcome.
Watch for
Do not rely on a single optimistic rate, return, or fee assumption. Money pages work best when you run low, base, and high cases and keep professional advice separate from the estimate.
This page belongs to the Finance calculator library, so the answer should be read in the context of the decision you are modeling rather than as a universal rule.
Before relying on this break-even estimate
Most calculator mistakes come from the inputs, not the arithmetic. Use this short audit before you reuse the answer in a spreadsheet, quote, application, or important conversation.
Confirm source numbers
Match balances, rates, fees, taxes, income, and payment dates against the lender quote, payroll record, tax form, statement, invoice, or contract.
Separate cash flow from total cost
A lower monthly payment can still cost more over time if fees, interest, taxes, or a longer term are hidden in the structure.
Run conservative cases
Test at least one higher-cost or lower-return case before using the output for a purchase, refinance, investment, loan, or tax decision.
Rerun this page when the rate, price, term, fee, tax rule, income, expense, or expected holding period changes.
How to Use
- Enter total fixed costs for the period you want to analyze.
- Add your selling price per unit and variable cost per unit.
- Optionally enter a target profit to see the units required beyond break-even.
- Review break-even units, break-even revenue, and contribution margin.
Frequently Asked Questions
What is break-even?
Break-even is the point where total revenue equals total costs, so profit is zero.
What is contribution margin?
Contribution margin is selling price minus variable cost per unit. It shows how much each sale contributes toward fixed costs and profit.
Why can't I break even if price is below variable cost?
Because each sale would lose money before fixed costs are even covered. In that case, additional volume makes the loss worse.
Can this work for services too?
Yes. Treat each billable job, hour, or contract as a unit if that matches how you price your service.
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