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How to calculate break-even point for online stores

2026-05-18 10:45 · Pricing Guides

A practical guide to break-even point for ecommerce sellers, including the formula, unit targets, and pricing context.

To calculate break-even point, start with fixed costs, selling price per unit, and variable cost per unit. Subtract variable cost from selling price to get contribution margin. Then divide fixed costs by contribution margin. The result is the number of units you need to sell before profit begins.

For example, if your fixed costs are 1,200 dollars, your selling price is 30 dollars, and your variable cost is 12 dollars, the contribution margin is 18 dollars per unit. Divide 1,200 by 18 and you get 66.67 units. That means you need to sell about 67 units to reach break-even.

This matters because many online stores focus on sales volume without first checking whether the volume is enough to cover costs. Break-even point creates a clearer target. Instead of asking whether a product feels promising, you can ask whether your traffic, conversion rate, and pricing are likely to support the required unit sales.

Break-even analysis is especially useful before launching a new product, running paid campaigns, or committing to inventory. It helps you compare different pricing options and see how a higher selling price or lower variable cost changes the required sales target.

A practical workflow is to test a few scenarios instead of relying on one answer. Adjust price, cost, or fixed expenses and compare how the break-even point moves. This reveals where your biggest leverage really is.

The Break Even Calculator on this site speeds up that comparison and gives you a clearer way to turn pricing ideas into realistic targets.