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FINANCE & BUDGETING

Break-Even Calculator

Enter fixed costs, price per unit, and variable cost per unit to calculate the contribution margin, break-even units, and break-even revenue.

Tool statusRuns in your browser
Preview

Inputs

Results

Contribution margin
20
Break-even units
500
Break-even revenue
25,000

Units needed for revenue to cover fixed and variable costs, with nothing left over.

How it works

  1. Enter your input

    Fill in the values, paste your text, or upload the file this tool works with.

  2. See results instantly

    Most tools update live as you type; a few use a single button. Either way, the result appears right on this page.

  3. Use your results

    Copy, download, or share what the tool produces — you're always in control of the output.

Privacy and processing — Runs locally in your browser. This tool does not upload your input.

What is Break-Even Calculator?

Enter fixed costs, price per unit, and variable cost per unit to see how many units — and how much revenue — you need to cover your costs.

UNDERSTAND THE TOOL

How to calculate a break-even point

How it's calculated

Each unit sold contributes its price minus its variable cost toward fixed costs. Dividing fixed costs by that contribution margin gives the number of units needed to break even.

Good to know

  • The result is rounded up to a whole unit, since a fraction of a unit can't actually be sold.
  • If price doesn't exceed variable cost, no number of units would ever break even.

Worked example

With $10,000 in fixed costs, a $50 price, and a $30 variable cost per unit, the $20 contribution margin means 500 units (500 × $20 = $10,000) covers the fixed costs exactly.

Contribution formula example

Contribution margin
price_per_unit - variable_cost_per_unit
Break-even units
ceil(fixed_costs / contribution_margin)

Fixed costs 1,000; price 25; variable cost 10

Contribution margin is 15, so break-even requires 67 units and 1,675 in revenue.

Calculation notes

All math runs in your browser; nothing you enter is sent anywhere.

Frequently Asked Questions

What happens if my price is lower than my variable cost?

Every unit sold loses money, so there's no break-even point — the calculator shows an invalid result in that case.

Does this include fixed costs I haven't listed?

No — only the fixed costs total you enter is used. Include rent, salaries, and other recurring costs in that single figure.

Does the break-even point change if my fixed costs change?

Yes — higher fixed costs raise the number of units needed to break even, since more contribution margin is required to cover them.

What if price is below variable cost?

There is no finite break-even point because every unit sold loses money before fixed costs are covered.

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