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Glossary

ROAS (return on ad spend)

What ROAS (return on ad spend) means, why it matters for marketers, and where it shows up in practice.

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Definition

ROAS is conversion value divided by ad spend. A ROAS of 4 (or 400%) means every $1 of ads returned $4 in tracked revenue or value.

Also called return on ad spend

MegaMCP glossary32 terms

Explained

ROAS uses revenue, not profit, so a “good” ROAS depends on your margins. A business with 25% margins needs a ROAS of 4 just to break even on the ad cost.

ROAS is only as good as the conversion values behind it. Platform-reported ROAS often double-counts sales that several platforms claim; analytics or CRM revenue gives a more conservative view.

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