Google CPM measures how much you pay for every 1,000 times your Google ad is shown—lower CPM means your budget reaches more people.
| Metric | Definition |
|---|
| Google Spend | Total amount spent on Google advertising |
| Google Impressions | Total times your Google ads were displayed |
| Metadata | |
|---|
| Type | Currency |
| Data Source | Google Ads |
| Aggregation | Ratio |
Example
A home décor brand spent $2,400 on Google Display ads in March and received 1,200,000 impressions:
| Metric | Value | Calculation |
|---|
| Google Spend | $2,400 | — |
| Google Impressions | 1,200,000 | — |
| Google CPM | $2.00 | $2,400 ÷ 1,200,000 × 1,000 |
How It Works
Google CPM divides your total ad spend by the number of impressions, then multiplies by 1,000 to express the cost per thousand views. This metric helps you understand the efficiency of your awareness campaigns where reach matters more than clicks.
When to Use
| Scenario | Action |
|---|
| Comparing brand awareness campaigns | Lower CPM = more efficient reach |
| Evaluating Display vs. YouTube spend | Compare CPM across campaign types |
| Assessing audience targeting efficiency | High CPM may signal narrow targeting |
| Budget planning for impressions | Forecast spend based on target reach |
| Metric | Relationship |
|---|
| Google Spend | Numerator—total ad cost |
| Google Impressions | Denominator—total ad views |
