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 in the tighter market of 2026 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 raw ROAS. The second folds in your average gross profit margin to yield a Profit ROAS, computed as revenue from ads multiplied by gross profit margin, then divided by ad cost. The second figure 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.