Ecommerce Breakeven Calculator

Work out how many units you must sell to cover fixed costs given the selling price and the variable cost per unit.

Enter your numbers

Fixed costs

Example: 100000

Selling price per unit

Example: 1200

Variable cost per unit

Example: 700

Result

Currency

Figures are computed on your device; nothing is sent anywhere.

contributionMargin = price - variableCostPerUnit; breakEvenUnits = fixedCosts / contributionMargin

The calculator subtracts the variable cost per unit from the selling price to get the contribution margin.

It then divides the total fixed costs by that contribution margin to find the breakeven number of units.

For example, a 500 contribution against 100,000 of fixed costs means 200 units must be sold.

Using total costs instead of fixed costs, which mixes in variable costs that are already handled through the contribution margin.
Setting a price below the variable cost per unit, so the contribution margin is negative and no number of sales ever breaks even.

Use it before launching a product to see how many orders are needed just to cover your fixed costs.
Use it to test whether a planned price cut still leaves enough contribution to reach breakeven quickly.

With fixed costs of 100,000, a price of 1200 and a variable cost of 700, the contribution per unit is 500, so you break even at 200 units.

Break-even units 200.00

Contribution margin 500.00

What counts as a fixed cost in ecommerce?

Fixed costs are expenses that do not change with order volume, such as website fees, storage rent and a monthly marketing budget.

Last updated: 2026-10-03