ROAS Calculator (Return on Ad Spend)

Revenue alone rarely tells you whether an ad campaign actually made money. Layering margin onto return on ad spend reveals the real picture, and that distinction separates campaigns that fund growth from ones that merely look busy. Measuring profitability rather than top-line return is what lets you decide where the next dollar should go.

Calculation happens in two stages. The first divides revenue generated from ads by total ad cost to produce ROAS, shown as a multiple and as the return over spend, (ROAS − 1) × 100. The second, optional stage uses your cost of goods sold or gross margin: break-even ROAS is 1 divided by the margin, so a 40% margin needs 2.5x just to cover the ad spend, and when you enter COGS the calculator also shows net profit (revenue − ad spend − COGS) and net ROI on the ad spend. That second stage strips away the illusion that revenue and profit are the same thing.

A glowing ROAS on thin-margin products can still leave you with almost nothing once costs are counted, so read the margin alongside the ratio. Watch, too, for costs that never make it into the spend figure: agency retainers and creative production both quietly inflate apparent returns. Tie every revenue number directly to the campaign under review, or the whole exercise drifts.