Break-Even Calculator
Units and revenue to break even.
The Break-Even Calculator determines exactly how many units you need to sell — or what total revenue you need to generate — to cover all your fixed and variable costs. At the break-even point, you make neither profit nor loss. Every unit sold beyond that point is pure profit. This is a critical tool for business planning: it tells you if a product idea is viable at your current price, how much you need to cut costs to become profitable, and how pricing changes affect your required sales volume. Essential for startups, new product launches, and ongoing business review.
See also: How to Estimate a Realistic Break-Even Point, Understanding Compound Interest (APR, APY, Compounding Frequency), Loan Repayment Methods: Equal Payment vs. Equal Principal, Mortgage Total Cost: Beyond Principal and Interest · Margin Calculator, Markup Calculator, Commission Calculator.
When this calculator helps most
Reach for this tool when you have a single product or service with a stable selling price and you want a first-pass answer to: “How many sales cover my overhead this month?” It is especially helpful before you lock in a price cut, add fixed rent, or compare two simple scenarios side by side.
What each input means
- Fixed costs — Costs that do not scale with each extra unit in the period you model (rent, salaried overhead, subscriptions). (currency / period)
- Variable cost per unit — Incremental cost to produce or deliver one more unit. (currency)
- Selling price — Revenue per unit before volume discounts — use your effective average price. (currency)
Input mistakes to avoid
- •Include a realistic average selling price after discounts, not the list price alone.
- •Classify salaries that truly scale with output as variable; keep only period-stable costs in fixed.
- •If contribution margin (price − variable cost) is zero or negative, fix that before trusting a break-even quantity.
Break-Even Calculator
Rent, salaries, insurance, etc.
Materials, per-unit labor, etc.
Formula
Examples
New Product Launch
$5,000 monthly fixed costs, $10 variable cost per unit, $25 selling price.
→ Break-even: 334 units/month, Break-even revenue: $8,350/month
Online Course Business
$2,000 monthly fixed costs (hosting, tools, ads). $0 variable cost per sale. $97 course price.
→ Break-even: 21 course sales/month ($2,037 revenue)
Food Truck / Café
$3,500 fixed costs/month, $4 variable cost per item, $11 average selling price.
→ Break-even: 500 items/month ($5,500 revenue)
Price Drop Analysis
Same product as Example 1. What if we drop the price to $20?
→ Break-even: 500 units/month (vs. 334 at $25 — 50% more units needed)
How to read your results
- →Contribution margin per unit = price − variable cost; break-even units = fixed costs ÷ contribution margin.
- →If contribution margin ≤ 0, you never break even at that price — raise price or cut variable cost.
- →This is a single-product, linear model — mixed product lines need allocation or separate SKUs.
What this result means
The headline number is how many units (or matching revenue) align your simplified revenue and cost model to zero operating profit for the period — a planning benchmark, not a sales guarantee.
Common Pitfalls
- ⚠️Treating semi-variable costs (e.g. utilities) as purely fixed or purely variable.
- ⚠️Using list price when real ASP includes discounts and returns.
- ⚠️Ignoring seasonality — one month’s fixed cost may not match annual averages.
Tips
- ✓Calculate break-even before launching any product or service — it validates whether the economics work.
- ✓Include ALL overhead in fixed costs: your own salary, hidden subscriptions, and pro-rated annual expenses.
- ✓A lower break-even point gives you more margin for error and faster path to profitability.
- ✓Do a sensitivity analysis: recalculate break-even at +10% and -10% on price and costs to understand risk.
How to check your results
- ✓Hand-check: contribution per unit = price − variable cost; break-even units = fixed costs ÷ contribution.
- ✓Cross-check in any spreadsheet with the same three numbers — results should match within rounding.
Warnings & Limitations
- ⚠️Break-even is a planning snapshot — cash timing, taxes, and debt service are not modeled here.
What this calculator does not tell you
- –Sales velocity or demand — it does not forecast how quickly customers will actually buy.
- –Cash timing (receivables vs payables) or loan interest — accounting break-even can differ from bank-account break-even.
- –Multi-product mixes unless you collapse them into one effective price and variable cost.
- –Taxes, dividends, or owner draws — only the cost structure you enter is reflected.
Frequently Asked Questions
What is the break-even point?
The break-even point is the level of sales at which total revenue exactly equals total costs — you make neither profit nor loss. Beyond this point, each additional unit sold generates profit equal to the contribution margin per unit.
What is the break-even formula?
Break-Even Units = Fixed Costs / (Selling Price − Variable Cost per Unit). The denominator (Selling Price − Variable Cost) is called the contribution margin per unit.
What counts as a fixed cost vs a variable cost?
Fixed costs stay constant regardless of production volume: rent, insurance, salaried staff, equipment depreciation, software subscriptions. Variable costs scale with production: raw materials, per-unit labor, shipping per item, transaction fees.
What is contribution margin?
Contribution Margin = Selling Price − Variable Cost per Unit. It is the amount each unit contributes toward covering fixed costs and, once break-even is reached, toward profit. A higher contribution margin means you need to sell fewer units to break even.
How does pricing affect the break-even point?
Higher selling prices increase the contribution margin and reduce the number of units needed to break even. Lower prices require selling more units. A 10% price increase often has a bigger impact on break-even than a 10% cost reduction.
What is the break-even point in revenue (dollars)?
Break-Even Revenue = Break-Even Units × Selling Price. Alternatively: Break-Even Revenue = Fixed Costs / Gross Margin %. This tells you the total sales dollars needed to cover all costs.
What if my break-even point is unreachable?
If your break-even calculation shows you need to sell more units than the market can support, you have three levers: raise prices (if the market allows), reduce fixed costs, or reduce variable costs per unit. Sometimes all three are needed.
Sources & References
Editorial & review note
Content is reviewed against introductory cost–volume–profit (CVP) texts and user feedback on ambiguous “semi-variable” costs; formulas are deterministic and documented on-page.
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Health BasicsRelated guides
How to Estimate a Realistic Break-Even Point
Textbook break-even divides fixed costs by contribution margin. In practice, capacity, seasonality, discounts, and semi-variable costs distort the line — here is how to stress-test.
Understanding Compound Interest (APR, APY, Compounding Frequency)
Learn how compound interest grows your money, how APR differs from APY, and why compounding frequency matters less than time and rate.
Loan Repayment Methods: Equal Payment vs. Equal Principal
Compare amortization methods, interest impact, and monthly payment profiles to pick a plan that fits your cash flow.
Mortgage Total Cost: Beyond Principal and Interest
Understand the full monthly cost of home ownership: taxes, insurance, PMI, and how they affect affordability.
Disclaimer: Educational estimate only. Business results depend on market demand, competition, taxes, financing, and accounting choices this model does not capture. For investment, lending, or legal decisions, work with a qualified accountant or advisor.