Break-Even Units Calculator
Find out exactly how many units you need to sell to cover all your costs. Enter your fixed costs, variable cost per unit, and selling price below.
The Break-Even Formula
The break-even formula is: Break-Even Units = Fixed Costs / Contribution Margin per Unit, where Contribution Margin = Selling Price − Variable Cost per Unit. This gives you the exact number of units you must sell before your business starts generating profit.
For example, a small manufacturer with $10,000 in monthly fixed costs, a variable cost of $15 per unit, and a selling price of $25 per unit has a contribution margin of $10. Break-even units = $10,000 / $10 = 1,000 units per month. At 1,000 units, revenue is $25,000 and total costs are also $25,000: $10,000 fixed + $15,000 variable.
Break-Even Scenarios Reference Table
| Fixed Costs | Contrib. Margin/Unit | Break-Even Units |
|---|---|---|
| $5,000 | $5.00 | 1,000 |
| $5,000 | $10.00 | 500 |
| $10,000 | $10.00 | 1,000 |
| $10,000 | $25.00 | 400 |
| $50,000 | $50.00 | 1,000 |
| $100,000 | $100.00 | 1,000 |
Contribution Margin and Profitability
The contribution margin ratio — contribution margin divided by selling price — tells you what percentage of each sales dollar is available to cover fixed costs and profit. A 40% contribution margin ratio means $0.40 of every dollar of sales covers fixed costs. Once fixed costs are fully covered, that $0.40 per dollar becomes pure profit.
Companies with high contribution margins (software, SaaS, digital products) reach profitability at relatively low volume because almost all revenue flows toward covering fixed costs. Companies with thin contribution margins (grocery, commodity goods) need very high volume to cover fixed overhead.
Frequently Asked Questions
What is break-even analysis?
Break-even analysis identifies the point where total revenue equals total costs — meaning zero profit and zero loss. Below the break-even point, the business is losing money. Above it, every additional unit sold generates profit equal to the contribution margin. It is a foundational tool for pricing decisions, launch planning, and evaluating whether a business model is viable.
What is the contribution margin?
Contribution margin = Selling Price per unit − Variable Cost per unit. It represents how much each unit sold contributes toward covering fixed costs, and then profit once fixed costs are covered. Example: sell at $25, variable cost $15, contribution margin = $10. With $10,000 in fixed costs, you need 1,000 units to break even. Every unit beyond 1,000 generates $10 in profit.
What counts as a fixed cost vs. variable cost?
Fixed costs do not change with production volume: rent, salaried employees, insurance, equipment leases, loan payments. Variable costs scale with production: raw materials, hourly labor, packaging, shipping, sales commissions. Semi-variable costs (utilities, some labor) have both fixed and variable components and should be split accordingly. Most businesses have more fixed costs than they realize.
How do I lower my break-even point?
Four strategies: (1) Raise your selling price — the most direct lever, instantly increases contribution margin. (2) Reduce variable costs per unit — supplier negotiation, process efficiency, bulk purchasing. (3) Reduce fixed costs — renegotiate leases, automate tasks, reduce overhead. (4) Increase volume — though this does not lower the break-even point, it spreads fixed costs and accelerates the path past break-even.