Break-Even Calculator
Find how many units you need to sell to cover all your costs. Enter your fixed costs, selling price, and variable cost per unit to calculate your break-even point instantly.
What Is a Break-Even Point?
The break-even point is where a business's total revenue equals its total costs — the exact threshold between loss and profit. Below the break-even point, you are losing money on every period of operation, even if individual unit sales are profitable. Above it, every additional unit sold generates net profit. Every business owner, entrepreneur, and product manager should know their break-even point before launching or making significant cost commitments.
Break-even analysis is especially valuable when pricing a new product, evaluating a new business venture, deciding whether to add a product line, assessing a potential rent increase, or determining how many sales a marketing campaign must generate to pay for itself. It converts a complex business question — "can we make money at this price?" — into a clear, answerable number.
The Break-Even Formula
The break-even calculation uses three inputs:
- Fixed Costs (FC): Costs that do not change with production volume — rent, salaries, insurance, software subscriptions, equipment lease payments
- Selling Price per Unit (P): The price at which each unit is sold to the customer
- Variable Cost per Unit (VC): Costs that scale with each unit produced or sold — materials, packaging, commissions, per-unit shipping
Contribution Margin = Price − Variable Cost per Unit
Break-Even Units = Fixed Costs ÷ Contribution Margin
Break-Even Revenue = Break-Even Units × Selling Price
Example: A small bakery has $8,000 in monthly fixed costs (rent, equipment, insurance, utilities). Each custom cake sells for $80 and costs $30 in ingredients and packaging. The contribution margin is $50 per cake. Break-even = $8,000 ÷ $50 = 160 cakes per month. At that volume, monthly revenue of $12,800 exactly covers all costs. Cake 161 is the first one that generates profit.
How Pricing and Cost Changes Shift the Break-Even Point
The break-even point is sensitive to all three inputs. This table shows how the bakery's break-even changes under different scenarios (base: $8,000 fixed costs, $80 price, $30 variable cost = 160 units):
| Scenario | Contribution Margin | Break-Even Units | Change |
|---|---|---|---|
| Base case | $50 | 160 | — |
| Raise price to $90 | $60 | 134 | −26 units |
| Lower price to $70 | $40 | 200 | +40 units |
| Reduce variable cost to $20 | $60 | 134 | −26 units |
| Increase fixed cost to $10,000 | $50 | 200 | +40 units |
| Reduce fixed cost to $6,000 | $50 | 120 | −40 units |
This is sensitivity analysis: systematically changing one input at a time to understand which variables most affect the break-even point. The table shows that a $10 price increase and a $10 variable cost reduction have the same effect on contribution margin and break-even volume — but the price increase also increases revenue per unit sold, making it more powerful if the market will bear it.
Break-Even Analysis for Small Businesses
Break-even analysis is one of the most practical tools in small business planning. Here are common situations where knowing the break-even point provides critical, decision-changing information:
| Scenario | How Break-Even Helps |
|---|---|
| Launching a new product | Know exactly how many units must sell to recover launch costs |
| Setting or changing a price | Understand how pricing changes affect required sales volume |
| Evaluating a rent or lease increase | Calculate how many additional units cover the higher fixed cost |
| Hiring an employee | Determine the additional revenue needed to cover the salary and benefits |
| Planning a marketing campaign | Set a minimum sales target the campaign must generate to break even on its cost |
| Considering a new location | Assess whether the location can generate enough volume to cover its overhead |
The Small Business Administration notes that understanding the relationship between costs, volume, and profit is one of the core financial competencies for small business success. Breaking even is not the goal — profitability and a meaningful margin of safety are. But knowing your break-even point tells you exactly how far you are from profitability and which levers will get you there fastest.
For service businesses, the same framework applies but units may be hours billed, clients served, or appointments completed. A freelance designer with $3,000 in monthly fixed costs charging $150/hour with $10/hour in software and tools costs a $140 contribution margin per hour. Break-even is $3,000 ÷ $140 ≈ 22 billable hours per month — a useful target to set minimum client commitments against.
Frequently Asked Questions
What is the break-even point?
The break-even point is the volume of sales at which total revenue exactly equals total costs — you have neither a profit nor a loss. Below the break-even point, the business operates at a loss; every unit sold above it generates profit. Break-even analysis is one of the foundational tools in business planning and pricing strategy. It gives entrepreneurs and managers a clear, quantitative answer to the question: 'How much do we need to sell just to keep the lights on?'
What are fixed costs vs. variable costs?
Fixed costs remain constant regardless of production or sales volume — examples include rent, salaried labor, insurance premiums, equipment lease payments, and software subscriptions. Variable costs scale with each unit produced or sold — raw materials, packaging, per-unit shipping, sales commissions, and merchant processing fees are common examples. In practice, some costs are semi-variable: a restaurant has fixed labor costs for a skeleton crew but adds variable labor as volume increases. For break-even analysis, classify costs as fixed or variable based on their primary behavior, and revisit the model as volume changes significantly.
What is contribution margin?
Contribution margin (CM) is the selling price per unit minus the variable cost per unit. It represents how much each unit sold 'contributes' toward covering fixed costs — and, once fixed costs are covered, toward profit. A product selling for $50 with $20 in variable costs has a $30 contribution margin. Break-even units = Fixed Costs ÷ Contribution Margin. Contribution margin can also be expressed as a percentage of the selling price (contribution margin ratio), which is useful for revenue-based break-even analysis: Break-Even Revenue = Fixed Costs ÷ CM Ratio.
How can a business lower its break-even point?
Three levers lower the break-even point: reduce fixed costs, reduce variable costs per unit, or increase the selling price. Reducing fixed costs — renegotiating rent, switching to contract labor, eliminating unused software — directly reduces the numerator of the break-even formula. Reducing variable costs — better supplier pricing, more efficient production, eliminating packaging waste — increases contribution margin. Raising prices also increases contribution margin, but must be weighed against the risk of lost volume. In practice, the fastest improvements often come from a combination of all three, even if each change is modest.
What is the margin of safety?
The margin of safety is the difference between actual or projected sales and the break-even point, expressed in units or revenue. It answers: 'How much can sales fall before we start losing money?' If a business breaks even at 200 units/month and sells 280, the margin of safety is 80 units — meaning sales could drop 28.6% before the business goes into the red. A thin margin of safety signals vulnerability to demand fluctuations; a wide margin indicates resilience. Lenders, investors, and management teams often track margin of safety alongside the break-even point as a measure of business risk.
How does break-even analysis apply to pricing decisions?
Pricing decisions are one of the most practical applications of break-even analysis. If you lower your price, your contribution margin shrinks and you need to sell more units to break even. If you raise your price, your contribution margin improves and break-even volume falls — but the question is whether the price increase costs enough volume to be net-negative. The break-even formula lets you model this explicitly: if raising the price by 10% reduces contribution margin volume by 15%, you need to determine whether the additional margin per unit compensates for the lost unit volume. This is sensitivity analysis, and the break-even framework makes it straightforward to run these scenarios.
Does break-even analysis account for taxes and depreciation?
Standard break-even analysis is typically done on a pre-tax, cash cost basis — it tells you when revenue covers costs, not when it covers taxes on profits. For a more complete picture, you can calculate a 'tax-adjusted break-even' by grossing up the profit needed to cover the expected tax rate. Depreciation is a non-cash fixed cost that is properly included in break-even analysis (it represents the real economic cost of asset use), but it doesn't affect cash flow the way cash expenses do. For cash break-even — the point at which you have enough cash coming in to cover cash going out — exclude depreciation from fixed costs.