Blended ROAS: Return on Ad Spend Across All Channels

Blended ROAS measures how many dollars of purchase revenue you generate for every dollar spent on ads across all channels.

Formula

Blended ROAS = Blended Purchases Value ÷ Blended Spend

Formula Components

Metric	Definition
Blended Purchases Value	Total attributed revenue from purchases across all ad platforms
Blended Spend	Total ad spend across Meta, Google, and TikTok

Metadata
Type	Multiplier
Data Source	Meta Ads, Google Ads, TikTok Ads
Aggregation	Ratio

Example

Your store spent $15,000 on advertising last month and generated $52,500 in attributed revenue:

Platform	Spend	Revenue	Platform ROAS
Meta Ads	$8,000	$28,000	3.5x
Google Ads	$5,000	$17,500	3.5x
TikTok Ads	$2,000	$7,000	3.5x
Blended	$15,000	$52,500	3.5x

How It Works

Blended ROAS aggregates spend and attributed purchase revenue across all connected ad platforms. A ROAS of 3x means you generate $3 in revenue for every $1 spent on ads. This provides a unified view of advertising efficiency without manually combining platform data.

When to Use

Scenario	Action
Evaluating overall ad efficiency	Compare Blended ROAS to your target (e.g., 3x minimum)
Reporting to stakeholders	Use as the single efficiency metric across all paid media
Budget allocation decisions	Compare to platform-specific ROAS to identify winners
Profitability analysis	Combine with margin data to assess true ad profitability

Metric	Relationship
Blended Spend	Denominator — total cost of ads
Blended Purchases Value	Numerator — total attributed revenue
Blended CPA	Inverse efficiency — cost to acquire a customer

See all Blended Efficiency metrics →