Break-Even Calculator
Calculate business break-even point
About the Break-Even Calculator
Before a product can make money, it has to cover its costs — and the break-even point is exactly where that happens. This calculator takes your fixed costs, the variable cost per unit, and the selling price per unit, then tells you how many units you must sell to break even and the revenue that represents.
Founders use it to pressure-test a business idea; product managers use it to set sales targets; anyone pricing a new offering uses it to know the threshold for profitability. It also reports the contribution margin — the profit each unit adds toward fixed costs — and warns you outright when the selling price is below the variable cost, a model that can never break even.
How to Use the Break-Even Calculator
- Enter your total fixed costs (rent, salaries, and other costs that do not change with volume).
- Enter the variable cost to produce one unit.
- Enter the selling price per unit.
- Read the contribution margin, the break-even unit count, and the break-even revenue.
- Heed the warning if your selling price is at or below your variable cost.
Why Use ToolForge’s Break-Even Calculator
- It reports contribution margin as its own figure, the key number that determines how quickly sales chip away at fixed costs.
- It actively detects an unprofitable model — selling price at or below variable cost — and warns instead of returning a misleading number.
- It translates the break-even point into both units and revenue, so you get a sales target and a money target together.
- It runs locally with no sign-up, ideal for quick what-if pricing checks.
Frequently Asked Questions
What is the break-even point?
It is the sales volume at which total revenue exactly equals total costs, so profit is zero. Below it you lose money; above it you profit. It is found by dividing fixed costs by the contribution margin per unit.
What is contribution margin?
Contribution margin is the selling price minus the variable cost per unit — the amount each sale contributes toward covering fixed costs and, beyond break-even, toward profit. A higher contribution margin means you break even on fewer units.
Why does it say the units are infinite or a loss?
That appears when your selling price is not above your variable cost, so every unit loses money and no quantity can cover fixed costs. The fix is to raise the price or cut the per-unit cost until the contribution margin is positive.
