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ROAS vs ROI: How the Metrics Differ

ROAS focuses narrowly on revenue relative to ad spend. ROI usually considers a broader set of costs and profit, making it closer to an investment-return measure.

On this pageROASROIWhy high ROAS can still lose moneyUse both levels

ROAS

ROAS = revenue attributed to ads ÷ ad spend. It is useful for comparing campaign efficiency when the revenue definition and attribution method are consistent.

ROI

A common ROI form is (return - investment) ÷ investment. In marketing, the exact costs included can vary, so the calculation should always be defined.

Why high ROAS can still lose money

Gross revenue can look strong while product cost, fulfillment, refunds, sales commissions or overhead eliminate profit. ROAS is not a substitute for unit economics.

Use both levels

Use ROAS for media optimization and broader ROI or contribution-margin metrics for business decisions. Connect the two rather than expecting one metric to answer every question.

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