Better ad decisions start with unit economics

BEROAS provides free calculators for ecommerce sellers and performance marketers who need to connect campaign metrics with product profit.

What this site helps you answer

The first question is simple: how much ROAS does this product need to break even? The tools extend that answer into break-even CPA, target ROAS, contribution margin, and profit per order.

Calculations run in the browser and use only the values you enter. They are planning estimates, not accounting, tax, or financial advice. Results are only as reliable as the inputs.

How pages are selected

We publish a calculator only when it solves a distinct ecommerce advertising problem. Different spellings of BEROAS belong to one homepage rather than separate thin pages.

How the site may be funded

The primary calculators are free. BEROAS may earn commissions from clearly disclosed software recommendations, including relevant product-research tools. A commercial relationship will not change the formulas, and paid destinations will be labeled. Read the affiliate disclosure.

Start with your numbers

Use the Break-Even ROAS Calculator to model an average order, or choose a specific tool from the navigation.