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Marketing Glossary· ROAS

What is ROAS (Return on Ad Spend)?

By Nikhil Sharma · Updated 1 November 2026 · Marketing Glossary
Definition

Return on Ad Spend (ROAS) measures how much revenue you earn for every unit of currency spent on advertising — calculated as revenue from ads divided by ad spend.

How to calculate ROAS

ROAS = Revenue from ads ÷ Cost of ads

Spend ₹1,00,000 and earn ₹4,00,000 in attributable revenue, and your ROAS is 4× (often written 4:1 or 400%).

What is a good ROAS?

It depends on your margins. A business with thin margins needs a much higher ROAS to be profitable than one with high margins. A common rule of thumb is 4× as a starting target, but the honest answer is the ROAS at which you make money after all costs.

ROAS vs ROI

ROAS counts only ad spend against revenue. ROI (return on investment) counts all costs — ad spend plus management, tools, time and cost of goods — against profit. ROAS can look healthy while ROI is negative, so use both.

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Written & reviewed by Nikhil Sharma
Founder, Fabulous Media
Nikhil has led growth for 850+ brands across 35 nations since 2008. Fabulous Media is an invitation-only growth agency that reports on pipeline and revenue, not vanity metrics. Meet the team · Request an invite.

Questions, answered

It depends on your profit margins. Low-margin businesses need a higher ROAS to be profitable; a frequent starting target is around 4x, but the real answer is the point at which you profit after every cost.

ROAS compares revenue to ad spend only. ROI compares profit to all costs, including management, tools and cost of goods. ROAS can be positive while ROI is negative.

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