Break Even Units Calculator

Enter fixed costs, selling price and variable cost to get the break even point and the margin per unit.

Break even point

Fixed costs

Selling price per unit Variable cost per unit

Margin per unit: —

Break even units: —

Break even revenue: —

Contribution margin ratio: —

Working: —

Break even units are rounded up, because a part finished unit cannot pay back a fixed cost.

Common questions about the free online break even units calculator.

Subtract the variable cost per unit from the selling price, then divide your fixed costs by that margin per unit.

It is the selling price minus the variable cost, so it is the money each sale contributes towards fixed costs.

A part finished unit cannot be sold, so the result is always rounded up to the next whole unit.

It is the break even units multiplied by the selling price, the turnover needed before any profit is made.

Then every sale loses money and the break even point never arrives, so the calculator reports that clearly.

Costs that do not change with output, such as rent, insurance, salaries and software subscriptions.

Costs that rise with each unit sold, such as materials, packaging, payment fees and delivery.

It shows the share of each sale left after variable costs, so a higher ratio reaches break even in fewer units.

No. Enter prices excluding tax, or include the tax effect in your costs and prices before calculating.

Yes. It is completely free and every calculation runs locally in your browser without an account.

Last updated: October 10, 2026