Break-Even Units Calculator

Summary

Enter your fixed costs, variable cost per unit, and selling price to instantly see how many units you must sell to break even.

How it works

1. Enter your total fixed costs — expenses that do not change with sales volume (e.g., rent, payroll, software).
2. Enter the variable cost per unit — costs that scale with each unit sold (e.g., materials, fulfillment).
3. Enter your selling price per unit — the amount the customer pays.
4. The calculator computes your contribution margin per unit (price minus variable cost).
5. It then divides fixed costs by the contribution margin to get the break-even quantity.
6. Results update instantly so you can experiment with different pricing or cost scenarios.

Use cases

• Determine how many products to sell before a new e-commerce store becomes profitable.
• Evaluate whether a price increase justifies a reduction in expected sales volume.
• Stress-test a product launch against pessimistic sales forecasts.
• Set monthly sales targets for your team based on cost structure.
• Compare break-even points across multiple product SKUs.
• Prepare financial projections for investors or lenders.
• Decide whether to outsource production (changing variable vs. fixed cost mix).
• Validate a subscription pricing model by computing required subscriber count.

Frequently Asked Questions