Business

Break-Even Calculator

Calculate break-even units and revenue with fixed and variable cost inputs.

Last validated: 2026-02-14

Break-Even Calculator computes how many units or how much revenue you need to cover fixed and variable costs. It is useful for pricing decisions, launch planning, and evaluating viability of new offers. The tool makes the break-even threshold explicit so teams can compare scenarios quickly. Use it before committing budgets or sales targets.

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Input Pattern

Enter values in the left panel, keep units explicit, run the calculation, then copy or share the result. Invalid fields are highlighted immediately.

Break-Even Inputs

Estimate units and revenue required to cover costs and hit target profit.

Break-Even Results

Contribution margin$30.00

Margin ratio60.00%

Break-even units400

Break-even revenue$20,000.00

Target-profit units400

Target-profit revenue$20,000.00

How to use this tool

Enter fixed costs, variable cost per unit, and selling price per unit.
Run the calculator to get break-even units and revenue.
Test alternate price/cost assumptions to compare risk and margin room.

Worked Example

Auto-generated from the tool's current default or entered inputs.

Example Inputs

Fixed costs: 12000.0
Variable cost per unit: 20.0
Price per unit: 50.0
Target profit: 0.0
Contribution margin: 30.0
Margin ratio: 60.0
Break even units: 400
Break even revenue: 20000.0

Expected Outputs

Fixed costs: 12000
Variable cost per unit: 20
Price per unit: 50
Target profit: 0

Interpretation

Fixed costs is 12000.0. Use this as a decision input, not as a standalone conclusion.
Variable cost per unit is 20.0. Use this as a decision input, not as a standalone conclusion.
Price per unit is 50.0. Use this as a decision input, not as a standalone conclusion.
Compare at least one conservative and one aggressive scenario before committing to a target.

Scenario Compare (A vs B)

Use this to compare two input sets and quantify change in key outputs.

Scenario A

Fixed costs

Variable cost per unit

Price per unit

Target profit

Contribution margin

Margin ratio

Break even units

Break even revenue

Scenario B