KPI Tree

Google Ads Metric

Paid Advertising

Click-Through Rate = (Clicks / Impressions) x 100

Click-through rate measures the percentage of Google Ads impressions that result in a click. It indicates how relevant and compelling your ads are to the audience seeing them, serving as a primary signal of ad-audience alignment and creative effectiveness.

Full guide: definition, formula, and benchmarks
Google AdsPaid Advertising

Click-Through Rate

Click-through rate measures the percentage of Google Ads impressions that result in a click. It indicates how relevant and compelling your ads are to the audience seeing them, serving as a primary signal of ad-audience alignment and creative effectiveness.

How to calculate click-through rate

Click-Through Rate = (Clicks / Impressions) x 100

Why click-through rate matters for Google Ads users

CTR is the bridge between visibility and engagement in paid search. A low CTR means your ads are being shown but not resonating - wasting impressions and potentially lowering quality score, which increases costs. A high CTR indicates strong ad-keyword-audience alignment.

Positioning CTR in your metric tree between impression metrics and conversion metrics reveals whether engagement or conversion is the bottleneck in your paid funnel. Statistical correlations show how CTR changes cascade through to cost per acquisition and revenue.

Understand and act on click-through rate with KPI Tree

KPI Tree syncs CTR data from your warehouse and positions it within your paid acquisition metric tree. Track CTR per campaign, ad group, keyword, and audience segment.

Assign RACI ownership to your paid search specialist. Set alerts when CTR drops below historical baselines and track optimisation actions such as ad copy changes, keyword refinements, and audience adjustments.

Get started with your Google Ads data

Query using MCP
MCP

Pull metrics from Google Ads directly through the Model Context Protocol.

Data Warehouse
SnowflakeBigQueryDatabricksRedshift

Connect your existing warehouse where Google Ads data already lands.

Professional Services
FivetranSnowflakedbt

Our professional services team can build you turn-key AI foundations in a matter of weeks. Data warehouse on Snowflake/BigQuery, ELT with Fivetran, all modelled in dbt with a semantic layer.

Related Google Ads metrics

Quality Score

Paid Advertising

Metric Definition

Quality score is Google Ads' rating of the overall quality and relevance of your keywords, ads, and landing pages. Scored from 1 to 10, it combines expected click-through rate, ad relevance, and landing page experience to influence your ad rank and actual cost per click.

View metric

Conversion Rate

Paid Advertising

Metric Definition

Conversion Rate = (Conversions / Clicks) x 100

Conversion rate measures the percentage of Google Ads clicks that result in a defined conversion action - such as a purchase, signup, form submission, or phone call. It quantifies how effectively your ads and landing pages turn paid traffic into measurable business outcomes.

View metric

Cost per Click

Paid Advertising

Metric Definition

Cost per Click = Total Ad Spend / Total Clicks

Cost per click measures the average amount paid for each click on a Google Ads advertisement. It reflects the competitive intensity of the keywords and audiences you target, the quality of your ads, and the effectiveness of your bidding strategy.

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Impression Share

Paid Advertising

Metric Definition

Impression Share = (Impressions Received / Total Eligible Impressions) x 100

Impression share measures the percentage of eligible impressions your Google Ads actually received compared to the total impressions available for your targeted keywords and audiences. It indicates your market coverage and competitive presence in the paid search landscape.

View metric

Ad Copy Testing Analysis

Paid Advertising

Metric Definition

Ad copy testing analysis evaluates the performance differences between ad creative variants in Google Ads campaigns. It measures how headline, description, and call-to-action variations affect click-through rates, conversion rates, and cost efficiency to identify the most effective messaging for each audience.

View metric

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