Business Finance · Break-even calculator
Know when your business breaks even.
Compare costs, pricing and contribution in one clear view.
- 1Set your baseline
- 2Change one assumption
- 3Compare and save
Scenario assumptions
Set costs and pricing for the same period in both scenarios.
Values are not converted between currencies.
Enter assumptions, then compare both scenarios.
Your break-even results
Break-even volume, contribution and the revenue needed to cover costs.
See where revenue meets cost
Enter both scenarios and select Compare scenarios. The results and chart appear together after validation.
Example: 1,000 fixed costs ÷ (50 price − 30 variable cost) = 50 units.
Save and resume locally
Scenario JSON saves names and assumptions. Results files record the calculation and cannot be imported as scenarios.
How this is calculated
Contribution = selling price − variable cost. Break-even units = fixed costs ÷ positive contribution. Whole units round up. If contribution is zero or negative, the engine reports no finite break-even.
Worked example and interpretation
Fixed costs of 1,000, a unit price of 50 and variable cost of 30 yield a contribution of 20 and break-even at 50 units. Reset restores these assumptions. Demand, capacity, tax treatment and varying costs are outside this illustration.
Calculations and scenario files stay in your browser. Financial inputs are not added to navigation links, automatically stored or transmitted by this tool. Downloads contain your entered information.
How many units must you sell to cover the fixed costs for the period?
- Enter fixed costs for a defined period, selling price per unit and variable cost per unit in one currency.
- Copy the baseline and change price or costs to test a proposed scenario.
- Compare contribution, fractional break-even volume and whole units rounded up. Check separately whether demand and capacity can support that volume.
A worked example
Fixed costs of 1,000, a price of 50 per unit and variable cost of 30 give contribution of 20 per unit and break-even at 50 units.
Common questions
How is break-even volume calculated?
Contribution per unit is selling price minus variable cost. Break-even volume is fixed costs divided by positive contribution. The whole-unit result rounds up so that fractional units are not treated as sellable units.
What does no finite break-even mean?
The entered price does not exceed variable cost, so each additional unit supplies no positive contribution toward fixed costs. The tool reports no finite break-even under those assumptions instead of a misleading sales target.
Does this predict profit or demand?
It illustrates the entered cost structure. It does not predict demand, capacity, product mix, tax treatment or changing marginal costs. Use the same assessment period for the assumptions you compare.
Check the cash buffer while sales ramp up
Break-even volume is one part of the decision. Compare cash receipts and monthly expenses to see how long the entered cash buffer lasts under constant-flow assumptions.
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