Blended New Customer ROAS: First-Time Buyer Ad Efficiency

Measure return on ad spend for new customer purchases across all channels. See how many dollars of first-time buyer revenue you earn per dollar spent.

How many dollars of new customer revenue you generate for every dollar spent on ads across all channels.

Formula

Blended New Customer ROAS = Blended New Customer Purchases Value ÷ Blended Spend

Formula Components

Metric	Definition
Blended New Customer Purchases Value	Total revenue from first-time buyers across all ad platforms
Blended Spend	Combined ad spend across Meta, Google, and TikTok

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

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Example

Your store spent $15,000 on ads this month and generated $37,500 from first-time customers:

Channel	NC Revenue	Spend	NC ROAS
Meta	$22,500	$8,000	2.81×
Google	$10,500	$5,000	2.10×
TikTok	$4,500	$2,000	2.25×
Blended	$37,500	$15,000	2.50×

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How It Works

Blended New Customer ROAS aggregates revenue from first-time buyers across all connected ad platforms and divides by total spend. A customer is “new” if they have no prior purchases in your store’s history. This metric isolates acquisition efficiency from repeat purchase revenue.

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When to Use

Scenario	Action
Evaluating acquisition efficiency	Compare NC ROAS to overall ROAS to see true acquisition cost
Scaling new customer campaigns	Identify which channels acquire customers most profitably
LTV-based budget planning	Combine with customer lifetime value for long-term ROI
Diagnosing growth stalls	Low NC ROAS with high overall ROAS signals over-reliance on repeat buyers

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Related Metrics

Metric	Relationship
Blended ROAS	Total return including repeat customers
Blended Spend	The denominator in this calculation
Blended New Customer Purchases Value	The numerator in this calculation

See all Blended Efficiency metrics →