What it calculates
The break-even calculator shows how many units must be sold before contribution margin covers fixed costs.
Business
Browser-sideFind the unit volume needed for contribution margin to cover fixed costs.
Enter fixed costs, price and variable cost. The result shows required units and revenue.
Live answer
Calculations run in this browser session. CalcHarbor does not store entered values.
Support
Use the result first. Support and promotional areas stay separate from the useful result.
The break-even calculator shows how many units must be sold before contribution margin covers fixed costs.
Break-even units = fixed costs / (price per unit - variable cost per unit). The denominator is contribution margin.
A lower break-even point means the business has more room for slow sales, discounts or demand swings.
Do not mix monthly fixed costs with annual unit expectations. Keep the time period consistent.
The model assumes a single price, a single variable cost and no capacity constraint. Use scenarios for mixed products.
No. CalcHarbor calculates in the browser and does not store calculator inputs or results.
Use the result as a planning signal. Confirm legal, tax, credit and accounting decisions with a qualified professional.