Calculate break-even units and units needed for a target profit — enter fixed costs, price per unit, variable cost per unit, and an optional profit goal. Results update live as you type.
Leave at 0 for break-even only.
Frequently Asked Questions
How are break-even units calculated?
Break-even units = Fixed costs ÷ (Price per unit − Variable cost per unit). This is the number of units you must sell to cover all fixed and variable costs with zero profit.
How do I find units for a target profit?
Add your desired profit to fixed costs, then divide by the contribution margin per unit: (Fixed costs + Target profit) ÷ Contribution margin.
How is this different from the Break-Even Calculator?
The Break-Even Calculator shows break-even revenue and contribution margin. This tool adds an optional target profit field and shows units needed to hit that goal.
What if my contribution margin is zero or negative?
If price per unit equals or is less than variable cost, you cannot break even — each sale loses money or fails to cover fixed costs.
Is this tool free and does it work on mobile?
Yes on both counts. The Break-Even Units Calculator on draft21 is completely free with no sign-up required and works on all devices.