Business Break-Even Calculator
Calculate the exact sales volume and monthly revenue required to cover your fixed overhead and reach zero net operating loss.
Cost Structure
Break-Even Unit Volume
200
Units per month to cover all costs
Break-Even Sales Revenue
$20,000
Revenue per month at break-even
Contribution Margin per Unit
$60.00 (60%)
Sales price minus variable cost
Revenue Required for Target Profit
$20,000
Revenue per month at break-even
Profitability Milestone
Each unit sold beyond the break-even point generates profit equal to the contribution margin.
Below break-even: operating at a loss
At break-even: costs fully covered
200
Above break-even: generating profit
Understanding Unit Economics and Overhead Coverage
Fixed Overhead Costs
Operating expenses that remain static regardless of production or sales volume, such as facility rent, baseline salaries, insurance, and administrative software.
Variable Unit Costs
Direct expenses tied to producing each unit, including raw materials, packaging, merchant payment processing, and fulfillment shipping.
Contribution Margin
The dollar amount remaining from each unit sale after subtracting variable costs, directly funding fixed overhead expenses.
Operating Margin of Safety
The buffer between actual sales volume and your break-even point, indicating how far sales can dip before the business incurs operating losses.
Frequently Asked Questions
Industry Contribution Margin Benchmarks
| Business Model | Typical Contribution Margin Ratio | Key Overhead Expense Focus |
|---|---|---|
| Physical Product (Retail) | 40% to 60% | Inventory and supply chain costs |
| Professional Services | 60% to 80% | Billable labor and scheduling |
| Software as a Service | 75% to 90% | Hosting and customer support |
3 Common Operational Mistakes
Treating owner draw or baseline management salaries as profit instead of fixed overhead.
Underestimating variable costs by omitting payment processing fees and return allowances.
Assuming break-even unit volume stays fixed during seasonal demand shifts.