> ## 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.

# Blended 100% Video Completion Rate: Full Watch Performance

> Track the percentage of video ad views that reached 100% completion across all advertising channels. Measure full video engagement.

<Tip>
  Blended 100% Video Completion Rate measures the percentage of video ad views where viewers watched the entire video to completion across all advertising channels.
</Tip>

## Formula

<Info>
  **Blended 100% Video Completion Rate** = **100% Video Views** ÷ **Video Views** × 100
</Info>

### Formula Components

| Metric                                                                                                 | Definition                                                                 |
| ------------------------------------------------------------------------------------------------------ | -------------------------------------------------------------------------- |
| [**Blended 100% Video Views**](/reference/metrics/advertising/blended/blended-video-views-100-percent) | The number of video views that reached 100% completion across all channels |
| [**Blended Video Views**](/reference/metrics/advertising/blended/blended-video-views)                  | Total number of video ad views across all channels                         |

| Metadata        |                                                                                                                             |
| --------------- | --------------------------------------------------------------------------------------------------------------------------- |
| **Type**        | Percentage                                                                                                                  |
| **Data Source** | [Meta Ads](/sources/catalog/facebook-ads), [Google Ads](/sources/catalog/google-ads), [TikTok Ads](/sources/catalog/tiktok) |
| **Aggregation** | Ratio                                                                                                                       |

***

## Example

Your video ads generated **50,000 total video views** last month, with **12,500 viewers** watching to 100% completion across all channels.

| Metric                   | Value   |
| ------------------------ | ------- |
| 100% Video Views         | 12,500  |
| Total Video Views        | 50,000  |
| **100% Completion Rate** | **25%** |

A 25% completion rate means one in four viewers watched your entire video ad across all platforms.

***

## How It Works

This metric aggregates video completion data from all connected advertising platforms (Meta, Google, TikTok, etc.) to show what percentage of viewers watch your videos to the end. A higher 100% completion rate indicates strong content that holds viewer attention throughout the entire video.

***

## When to Use

| Scenario                              | Action                                                                                  |
| ------------------------------------- | --------------------------------------------------------------------------------------- |
| Evaluating video creative performance | Compare 100% completion rates across different video ads to identify top performers     |
| Optimizing video length               | If completion rates are low, test shorter video formats                                 |
| Cross-platform comparison             | Use blended view to see overall performance before drilling into platform-specific data |
| Assessing content quality             | High completion rates indicate engaging content that resonates with your audience       |

***

## Related Metrics

| Metric                                                                                                         | Relationship                                         |
| -------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------- |
| [Blended 100% Video Views](/reference/metrics/advertising/blended/blended-video-views-100-percent)             | The numerator — count of views reaching 100%         |
| [Blended 75% Video Completion Rate](/reference/metrics/advertising/blended/blended-75-percent-completion-rate) | Previous quartile — viewers who watched at least 75% |
| [Blended ThruPlay Views](/reference/metrics/advertising/blended/blended-thruplay-views)                        | Views played to completion or at least 15 seconds    |

[See all Blended Video metrics →](/reference/metrics/advertising/blended)