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Blended Cost Per Share measures the average cost to generate one share of your ads across all connected advertising platforms.

Formula

Blended Cost Per Share = Blended Spend ÷ Blended Shares

Formula Components

MetricDefinition
Blended SpendTotal advertising spend aggregated across all platforms
Blended SharesTotal shares of your ads aggregated across all platforms
Metadata
TypeCurrency
Data SourceMeta Ads, Google Ads, TikTok Ads
AggregationRatio

Example

Your campaigns generated 2,500 shares across all platforms with a total spend of $5,000.
PlatformSpendSharesCost Per Share
Meta$2,5001,800$1.39
TikTok$2,500700$3.57
Blended$5,0002,500$2.00

How It Works

Blended Cost Per Share divides your total ad spend by the total number of shares across all connected platforms. This gives you a unified view of how efficiently your budget generates viral engagement, regardless of which platform drives the shares.

When to Use

ScenarioAction
Comparing viral efficiencyBenchmark cost per share against industry standards
Optimizing for shareabilityIdentify which creative assets generate shares most cost-effectively
Budget allocationShift spend toward platforms with lower cost per share
Campaign planningSet target cost per share for awareness campaigns

MetricRelationship
Blended SpendNumerator in this calculation
Blended SharesDenominator in this calculation
Blended Cost Per EngagementBroader engagement efficiency metric
See all Blended Engagement metrics →