> ## Documentation Index
> Fetch the complete documentation index at: https://docs.upstackdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Google Purchases: Ad-Attributed Purchase Count

> Track the number of purchases attributed to your Google ads. Monitor purchase conversion volume and campaign effectiveness.

<Tip>
  Google Purchases is the total number of purchase conversions that Google attributes to your ads.
</Tip>

## Formula

<Info>
  **Google Purchases** = **COUNT** ( Purchase Conversions )
</Info>

| Metadata        |                                   |
| --------------- | --------------------------------- |
| **Type**        | Number                            |
| **Data Source** | [Google Ads](/sources/google-ads) |
| **Aggregation** | Count                             |

***

## Example

A fitness equipment store ran **\$12,500** in Google Ads last month:

| Campaign        | Purchases | Spend        | CPA      |
| --------------- | --------- | ------------ | -------- |
| Brand Search    | 187       | \$2,800      | \$15     |
| Shopping        | 124       | \$5,200      | \$42     |
| Performance Max | 89        | \$4,500      | \$51     |
| **Total**       | **400**   | **\$12,500** | **\$31** |

***

## How It Works

Google tracks purchase conversion events triggered by users who interacted with your ads. This count is pulled directly from the Google Ads API and reflects Google's attribution model for determining which purchases resulted from your advertising.

***

## When to Use

| Scenario                    | Action                                                  |
| --------------------------- | ------------------------------------------------------- |
| Measuring conversion volume | Compare purchase counts across campaigns                |
| Calculating CPA             | Divide spend by purchases to find cost per acquisition  |
| Scaling campaigns           | Identify campaigns generating the most purchases        |
| Attribution comparison      | Compare Google-attributed purchases to first-party data |

***

## Related Metrics

| Metric                                                                                                    | Relationship                             |
| --------------------------------------------------------------------------------------------------------- | ---------------------------------------- |
| [Google Purchases Value](/reference/metrics/advertising/google/google-conversions/google-purchases-value) | Revenue generated from these purchases   |
| [Google ROAS](/reference/metrics/advertising/google/google-efficiency/google-roas)                        | Return on ad spend using purchases value |
| [Google CPA](/reference/metrics/advertising/google/google-efficiency/google-cpa)                          | Cost per purchase acquisition            |

[See all Google Conversions metrics →](/reference/metrics/advertising/google/google-conversions)