Break-Even Calculator
Find the units and revenue where a product stops losing money — fixed costs, price and variable cost in, contribution margin and profit table out.
Break-even units = fixed costs ÷ (price − variable cost). Each sale contributes that difference toward fixed costs; after they are covered, the same margin is profit.
Profit at different volumes
| Output level | Units | Revenue | Profit |
|---|---|---|---|
| 0.5× break-even | 250 | $12,500 | $-5,000 |
| 1× break-even | 500 | $25,000 | $0 |
| 1.5× break-even | 750 | $37,500 | $5,000 |
| 2× break-even | 1,000 | $50,000 | $10,000 |
This tool runs entirely in your browser. Your data never leaves your device — it is not uploaded to any server.
How to use
- 1Enter total fixed costs for the period.
- 2Set the price per unit and the variable cost per unit.
- 3Read the break-even units and revenue, plus the margin per unit.
- 4Check the profit table at 0.5×, 1.5× and 2× the break-even volume.
Break-Even Calculator
Enter your fixed costs — rent, salaries, equipment, the bills you pay regardless of volume — plus the price per unit and the variable cost per unit. The calculator divides fixed costs by the contribution margin, price minus variable cost, to give the number of units at which profit crosses zero.
A mini table shows profit or loss at half, one-and-a-half and twice the break-even volume, so you can see how fast the margin accumulates once the point is passed. If the price does not even cover the variable cost, the tool says so instead of showing a meaningless zero.
Frequently asked questions
What formula does break-even analysis use?
Break-even units = fixed costs ÷ (price per unit − variable cost per unit). The difference is the contribution margin: with 10,000 in fixed costs, a 50 price and a 30 variable cost, each sale contributes 20, so 500 units — 25,000 of revenue — break even.
What if the margin is zero or negative?
Then no volume can break even, and the calculator says so rather than returning a number: every unit sold adds loss instead of covering fixed costs. The fixes are a higher price, a lower variable cost, or both.
Does it handle multiple products or changing costs?
It models one product with constant unit economics — the classic textbook case. For a product mix, use your blended average of price minus variable cost; for volume discounts or step-fixed costs, rerun the numbers per scenario.
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