diff --git a/content/collections/analytics/en/web-analytics.md b/content/collections/analytics/en/web-analytics.md
index 59cf972d5..dd9c8a0ce 100644
--- a/content/collections/analytics/en/web-analytics.md
+++ b/content/collections/analytics/en/web-analytics.md
@@ -71,6 +71,21 @@ For conversion insights, you can also:
 - View the data table fields by channel or campaign.
 - Display total conversions or conversion rate.
 
+### Ads metrics definitions
+
+Here are the default Ads metrics available in Out-of-the-box Marketing Analytics, along with the high-level formulas and definitions:
+
+| **Metric**     | **Formula**                                             | **Definition**                                                                                                                                                     |
+|----------------|---------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| **Impressions**| `PROPSUM(ad_metrics.impressions)`                      | Total number of times your ad is served (shown) to users. **Derived from Daily Ad Metrics**.                                                                       |
+| **Clicks**     | `PROPSUM(ad_metrics.clicks)`                           | Total number of times users click your ad. **Derived from Daily Ad Metrics**.                                                                                      |
+| **CTR**        | `%: (ad_metrics.clicks / ad_metrics.impressions) * 100` | Click-through rate. Shows the percentage of impressions that result in a click. **Derived from Daily Ad Metrics**.                       |
+| **Ad Spend**   | `PROPSUM(ad_metrics.cost)`                             | Total amount spent on your ad campaign. **Derived from Daily Ad Metrics**.                                                                                      |
+| **CPC**        | `ad_metrics.cost / ad_metrics.clicks`                  | Cost per click. Shows how much you pay, on average, for each click on your ad. **Derived from Daily Ad Metrics**.                                     |
+| **CAC**        | `ad_metrics.cost / [Acquisition Event]`                | Customer Acquisition Cost. Shows how much you pay, on average, to acquire a single new user. **Cost from Daily Ad Metrics; acquisition event set in Settings**.   |
+| **ROAS**       | `[Revenue Property] / ad_metrics.cost`                            | Return on Ad Spend. Shows how much revenue you earn for every dollar spent on advertising. **Cost from Daily Ad Metrics; revenue property set in Settings**.      |
+
+
 ## Modify settings and create goals
 
 Out-of-the-box Marketing Analytics uses default events and properties from the Browser SDK, but admins or managers can modify them in settings.