Break-Even Calculator
Find the number of units you must sell to cover your costs.
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How it works
The break-even point is where total revenue equals total cost, so profit is zero. Enter your fixed costs, the selling price per unit, and the variable cost per unit. The tool subtracts variable cost from price to get the contribution margin per unit, then divides fixed costs by that margin to find how many units you must sell to break even, plus the revenue at that point. Currency formatting is configurable and all math runs locally.
break-even units = fixed costs / (price − variable cost)
Common use cases
- Working out how many units a new product must sell to be profitable.
- Testing how a price change shifts your break-even point.
- Deciding whether a fixed-cost investment is worth it.
Frequently asked questions
What is contribution margin?
It is the selling price minus the variable cost per unit — the amount each sale contributes toward covering fixed costs. Break-even units equal fixed costs divided by this margin.
What if price is below variable cost?
Then every sale loses money and there is no break-even point. The tool flags this, since you would need to raise the price or cut variable costs first.
Does it include taxes?
No. It is a basic cost-volume analysis. Include any per-unit taxes in your variable cost and any flat fees in fixed costs for a closer estimate.