OneTool

Break-Even Calculator

How many units until contribution covers fixed costs?

Break-even units

500

Break-even revenue

$25,000.00

Contribution margin / unit

$20.00

Contribution margin ratio

40.00%

What is this tool?

Break-even unit volume is fixed costs divided by contribution margin (price minus variable cost per unit). Multiply by price for break-even revenue. Assumes constant price and variable cost — a planning sketch, not a full P&L.

How to use it

  1. Enter fixed costs, selling price per unit, and variable cost per unit.
  2. Read break-even units, revenue, and contribution margin.