Google ROAS: Measure Your Google Ads Return on Investment

Google ROAS measures how much revenue you earn for every dollar spent on Google Ads.

Formula

Google ROAS = Google Purchases Value ÷ Google Spend

Formula Components

Metric	Definition
Google Purchases Value	Revenue from purchases attributed to Google Ads
Google Spend	Total amount spent on Google Ads

Metadata
Type	Multiplier (displayed as Nx)
Data Source	Google Ads
Aggregation	Ratio

Example

Your Google Ads campaign generated $12,500 in revenue from $2,500 in ad spend:

Metric	Value
Google Purchases Value	$12,500
Google Spend	$2,500
Google ROAS	5.0x

A 5.0x ROAS means you earned $5 in revenue for every $1 spent on Google Ads.

How It Works

Google ROAS divides revenue from purchases attributed to your Google Ads by your total ad spend. A ROAS of 3x means $3 in revenue per $1 spent. Higher ROAS indicates more efficient advertising performance.

When to Use

Scenario	Action
Evaluating campaign profitability	Compare ROAS against your target (e.g., 3x minimum)
Optimizing budget allocation	Shift spend toward campaigns with higher ROAS
Testing ad creatives	Measure which variations drive better returns
Setting bid strategies	Use target ROAS bidding in Google Ads

Metric	Relationship
Google Spend	The denominator in the ROAS calculation
Google Purchases Value	The numerator in the ROAS calculation
Google CPA	Cost efficiency metric—lower CPA often correlates with higher ROAS

See all Google Efficiency metrics →

Google Efficiency Google CPA

⌘I

​Formula

​Formula Components

​Example

​How It Works

​When to Use

​Related Metrics

Formula

Formula Components

Example

How It Works

When to Use

Related Metrics