Finance
Break-even Calculator
Find how many units you must sell to cover fixed and variable costs.
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Transparent methodology
What the result includes—and what it does not
Built for small businesses estimating the sales volume required to cover fixed costs.
Calculation method
- 1Contribution per unit = selling price − variable cost per unit.
- 2Break-even units = fixed costs ÷ contribution per unit, rounded up to the next whole unit.
- 3Break-even revenue = break-even units × selling price.
Assumptions and limits
- Selling price and variable cost are assumed constant across the calculated volume.
- The result excludes tax and financing effects unless they are included in the entered costs.
- A zero or negative contribution margin cannot produce a finite break-even point.
Worked example
$12,000 fixed cost with a $45 contribution
Input: $12,000 fixed costs, $80 selling price, and $35 variable cost.
Output: 267 units are required to cover the entered costs.
How to use it
Three steps. One clear answer.
- 1Enter or paste the values requested by the tool.
- 2Review the input units and choose any relevant options.
- 3Calculate, then copy or download the result you need.
Built for trust
Useful without the friction.
- No registration or paywall before your result.
- Responsive controls for phone, tablet, and desktop.
- Clear assumptions and warnings where estimates have limits.
Frequently asked questions
How does the Break-even Calculator work?
Contribution per unit = selling price − variable cost per unit. Break-even units = fixed costs ÷ contribution per unit, rounded up to the next whole unit. Break-even revenue = break-even units × selling price.
What should I check before using the result?
Selling price and variable cost are assumed constant across the calculated volume. The result excludes tax and financing effects unless they are included in the entered costs. A zero or negative contribution margin cannot produce a finite break-even point.
How current is this page?
The methodology and source notes were reviewed on 2026-07-24. Editable rates and inputs should still be checked against the provider or authority linked below.
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