ROAS (Return on Advertising Spend)
Return on Advertising Spend
A metric that calculates how much revenue is generated for every unit of advertising spend.
In Simple Terms
ROAS is a metric for evaluating how efficiently advertising generates revenue. For example, if you spend ¥100,000 on advertising and generate ¥500,000 in sales, the ROAS is 500%. It is widely used in digital advertising — where clicks and purchases can be tracked directly — as a standard for measuring how much each ad contributes to revenue.
Behind the Name
ROAS stands for Return on Advertising Spend. "Return" refers to the revenue earned back, "Advertising" covers the promotional activities you invest in, and "Spend" is the money put in — together, the term captures exactly what it measures: how much revenue comes back for every yen spent on advertising.
Take a Closer Look!
ROAS is a metric that expresses, as a percentage, how much revenue is earned relative to the advertising spend invested.
It is calculated as revenue ÷ ad spend × 100, and the higher the value, the better the cost-effectiveness of the advertising.
For example, spending ¥100,000 on ads that generate ¥500,000 in revenue gives a ROAS of 500%.
In contrast, if that same ¥100,000 in ad spend only produces ¥200,000 in revenue, the ROAS would be 200% — making it clear that the first scenario delivers more efficient results.
In real-world marketing, ROAS is used as a benchmark for comparing which advertising channels perform best and for deciding how to allocate future budgets.
A closely related term is ROI (Return on Investment), but the key difference is that ROI is based on profit, while ROAS is based on revenue.
Tracking this metric is essential when the primary goal is to grow sales.