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Break-Even Calculator

Estimate how many units you must sell for contribution profit to cover fixed costs.

Reviewed 2026-06-18 · Formula and example verified by the CalcPilot Editorial Team

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Break-even volume

400

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Quick answer

How do you calculate Break-Even?

Use Break-even units = Fixed costs ÷ (Price per unit − Variable cost per unit). Enter the matching values above to calculate the result instantly.

What it measures

Understanding Break-Even

The break-even point is the sales volume at which total contribution profit exactly covers fixed costs. Each unit contributes its selling price minus its variable cost. Dividing fixed costs by that contribution per unit shows how many units are needed before the business begins generating operating profit. Because partial units usually cannot be sold, round the result up when planning a real target. Separate costs carefully: rent and base salaries are typically fixed within a relevant range, while materials, transaction fees, and per-order shipping are variable. If price is equal to or below variable cost, there is no valid break-even volume—each sale adds nothing or increases the loss. The calculation assumes price and unit cost stay constant, all produced units are sold, and the product mix does not change. Real businesses rarely behave that neatly, so use the result as a planning baseline and test conservative scenarios. It is particularly useful when launching a product, negotiating supplier costs, setting a sales target, or evaluating whether a planned discount leaves enough contribution to cover overhead.

The math

Break-even units formula

Break-even units = Fixed costs ÷ (Price per unit − Variable cost per unit)

Worked example

Example calculation

A product has $12,000 in fixed costs, an $80 price, and a $50 variable cost.
Calculation
$12,000 ÷ ($80 − $50)
Result
400 units to break even

Step by step

How to use this calculator

  1. 1Enter fixed costs for the period.
  2. 2Enter unit selling price and variable cost.
  3. 3Round the result up to a whole unit for your minimum sales target.

Decision support

When this calculator is useful

  • Planning a launch
  • Setting sales targets
  • Evaluating price or cost changes

Common questions

Frequently asked questions

Why must the result be rounded up?

Selling fewer than the calculated amount leaves part of fixed costs uncovered, so whole-unit plans should round upward.

What if variable cost is higher than price?

There is no attainable break-even point under those inputs because each sale creates an additional loss.

Are salaries fixed or variable?

Base salaries are commonly fixed for a planning period; commissions and piece-rate labor are usually variable.

Does break-even mean positive cash flow?

Not necessarily. Payment timing, inventory purchases, debt, and non-cash expenses can make cash flow differ from accounting break-even.

Calculation reviewed: 2026-06-18. CalcPilot uses the formula shown above and tests representative values during the production build. See our methodology and correction policy.

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