Free break-even calculator. Calculate how many units you need to sell to cover fixed and variable costs and reach the break-even point.
A break-even calculator finds the number of units you need to sell for total revenue to exactly equal total costs ā fixed costs plus variable costs ā the point at which a business or product moves from a loss to a profit.
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Break-even point
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Break-Even Calculator
Every product or business has a break-even point ā the sales volume at which total revenue exactly covers total costs. Below that volume, the business operates at a loss; above it, each additional sale contributes to profit. Knowing this number is fundamental to pricing, budgeting, and deciding whether a venture is viable.
The calculation rests on separating costs into two categories: fixed costs that don't change with sales volume, and variable costs that scale with each unit. This calculator uses both, along with your selling price, to find exactly how many units need to be sold to break even.
Contribution Margin
Contribution margin ā price minus variable cost per unit ā is the amount each sale contributes toward covering fixed costs before any profit is made. It's the key number in break-even analysis, since fixed costs are paid off unit by unit through this margin.
Dividing total fixed costs by the contribution margin per unit gives the break-even point in units: how many sales are needed before contribution margin has fully covered fixed costs. Every unit sold beyond that point converts its full contribution margin directly into profit.
Levers for Change
A high break-even point can be brought down through three main levers: raising the price per unit (which increases contribution margin directly), reducing variable costs per unit (through better sourcing or efficiency), or reducing fixed costs (renegotiating leases, cutting overhead).
Each lever has trade-offs ā raising price risks losing sales volume, cutting variable costs can affect quality, and cutting fixed costs may limit capacity. Understanding which lever moves the break-even point most efficiently for a specific business is often more valuable than the break-even number itself.
Limitations
This calculator assumes fixed costs, variable cost per unit, and price all stay constant regardless of volume ā in reality, costs can step up at certain production levels (needing a new hire or larger space), and prices may need to change to sell higher volumes.
Break-even analysis also doesn't account for the time value of money, competitive response, or market demand limits ā it answers "how many units to cover costs," not "can I actually sell that many." It's a starting point for pricing and viability decisions, not a complete business plan.
Practical Use Cases
Launching a new product
Estimating how many units must sell before the product becomes profitable.
Setting a price point
Seeing how different prices change the sales volume needed to break even.
Evaluating a business plan
Checking whether a realistic sales forecast clears the break-even threshold.
Deciding on a major expense
Understanding how adding fixed costs (like new equipment or staff) shifts the break-even point.
Comparing cost-reduction options
Seeing which cost change ā fixed or variable ā has the bigger impact on break-even.
The break-even point is the sales volume at which total revenue exactly equals total costs ā you're neither making a profit nor a loss. Selling one more unit past this point starts generating profit.
Fixed costs stay the same regardless of how much you sell, like rent, salaries, or insurance. Variable costs scale directly with each unit produced or sold, like raw materials, packaging, or per-unit commission. Both are needed to calculate break-even accurately.
Contribution margin is the amount each unit sold contributes toward covering fixed costs, calculated as price minus variable cost per unit. Once enough units are sold to cover total fixed costs through their contribution margins, you've reached break-even.
A high break-even point usually means either your fixed costs are large relative to your profit per unit, or your contribution margin (price minus variable cost) is thin. Increasing price, reducing variable costs, or lowering fixed costs are the three main levers to bring the break-even point down.
Yes, though "units" may represent billable hours, client engagements, or subscriptions rather than physical products. The same logic applies: fixed costs (office, salaries) need to be covered by the contribution margin from each unit of service sold.