Blended ROAS (Return on Ad Spend) measures total revenue compared to total advertising spend across all marketing channels combined.
Unlike platform-specific ROAS (for example within Google Ads or Meta Ads), Blended ROAS looks at overall performance instead of evaluating channels in isolation.
Formula:
Total Revenue ÷ Total Ad Spend (all channels)
Example:
If you generate €100,000 in total revenue and spend €20,000 across all paid channels, your blended ROAS is 5.0.
Why it matters
- Prevents over-optimizing one channel at the expense of total growth
- Encourages a more holistic marketing strategy
- Helps evaluate true business impact rather than platform-reported performance
Blended ROAS is especially relevant in multi-channel strategies where attribution differences can distort individual platform metrics.
In short: Blended ROAS measures overall marketing efficiency across all paid channels combined.