Break-Even Calculator

Calculate how many units you must sell to break even instantly in your browser. Free online break-even point calculator for fixed and variable costs.

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Results

Units to sell
DetailValue
Break-even revenue
Contribution margin / unit
Contribution margin %
Fixed costs

What is this calculator for?

Determine the number of units you must sell to cover all fixed and variable costs.

How to Use This Calculator

Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.

  1. Fixed costs (total) — enter a numeric amount. A typical Fixed costs (total) would be 10000.
  2. Selling price per unit — enter a numeric amount. A typical Selling price per unit would be 50.
  3. Variable cost per unit — enter a numeric amount. A typical Variable cost per unit would be 30.
  4. Review your results — the key output is highlighted, with supporting figures below.

What You'll Need

Fixed costs (total)
a numeric amount range 0–∞ · required
Selling price per unit
a numeric amount range 0–∞ · required
Variable cost per unit
a numeric amount range 0–∞ · required

About This Calculator

The break-even point is where revenue exactly equals total costs (fixed + variable).

It is found by dividing fixed costs by the contribution margin per unit (selling price minus variable cost). The result is rounded up to whole units, since you cannot sell a fraction of a product, plus the equivalent break-even revenue.

Calculation runs entirely in your browser.

Worked Examples

Example

Break-even at 500 units (revenue 25000)

Frequently Asked Questions

What if my contribution margin is zero or negative?
If price equals or falls below variable cost, you never break even — each sale loses or neither gains money. The tool flags this instead of returning a nonsensical number.
Is this a simple or full break-even analysis?
It is the core single-product break-even calculation. Real analyses may add taxes, mixed products, and over-forecast scenarios, but the unit math is the same foundation.