Break-Even Point Calculator
Work out exactly how much you need to sell before you start making a profit. Enter your fixed costs, selling price and variable cost per unit, and this free break-even calculator shows the contribution margin, the number of units and the revenue you need to break even. Add a target profit or your expected sales to see how many units hit your goal and how big your margin of safety is — all calculated instantly in your browser.
Your break-even results will appear here
Enter your fixed costs, price and variable cost to see the break-even point.
This product can never break even: the price is not above the variable cost, so every unit sold adds to your loss. Raise the price or cut the variable cost so the contribution margin is positive.
Break-even point
Contribution margin / unit Price minus variable cost — how much each unit contributes toward fixed costs and profit.
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Contribution margin ratio Contribution margin as a share of price. A higher ratio means you reach break-even faster.
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Break-even units Fixed costs divided by the contribution margin per unit — the units you must sell to make zero profit.
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Break-even revenue Break-even units multiplied by price — the sales you need to cover every cost.
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Units for target profit Units to sell to cover fixed costs and still make your target profit.
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Margin of safety How far your expected sales sit above break-even. A larger buffer means less risk of a loss.
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Scenario breakdown
| Scenario | Units | Revenue | Profit |
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Break-even units may include a fraction; round up to whole units in practice, since a partial unit still leaves you slightly short of covering costs.
How to use
- Enter your total fixed costs — rent, salaries and other costs that stay the same.
- Enter the selling price per unit and the variable cost per unit.
- Read the break-even units and break-even revenue from the result cards.
- Optionally add a target profit to see the units needed to reach it.
- Optionally enter your expected sales to see your margin of safety, then copy the summary.
Features
- Break-even point in both units and revenue (THB)
- Contribution margin per unit and contribution margin ratio
- Target-profit mode: units needed to hit a profit goal
- Margin of safety from your expected or actual sales
- Clear warning when a product can never break even
- 100% in-browser — your figures never leave your device