> ## 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.

# TikTok Video Completions: 100% Watched

> Track TikTok views where viewers watched your entire video. Measure the strongest video engagement signal for your campaigns.

<Tip>
  TikTok Video Completions counts views where viewers watched your entire video from start to finish — the strongest video engagement signal.
</Tip>

## Formula

<Info>
  **TikTok Video Completions** = **SUM** ( Video Completions )
</Info>

### Formula Components

| Metric                | Definition                                       |
| --------------------- | ------------------------------------------------ |
| **Video Completions** | Each instance a viewer watched 100% of the video |

| Metadata        |                               |
| --------------- | ----------------------------- |
| **Type**        | Number                        |
| **Data Source** | [TikTok Ads](/sources/tiktok) |
| **Aggregation** | Sum                           |

***

## Example

Your campaign generated **107,100 at 75%** with **85,680 full completions** — an 80% conversion from three-quarters to finish.

| Video Length | 75% Views   | Completions | Completion Rate |
| ------------ | ----------- | ----------- | --------------- |
| 15 seconds   | 45,900      | 41,310      | 90.0%           |
| 30 seconds   | 38,200      | 30,560      | 80.0%           |
| 60 seconds   | 23,000      | 13,810      | 60.0%           |
| **Total**    | **107,100** | **85,680**  | **80.0%**       |

***

## How It Works

TikTok counts a completion when a viewer watches your video all the way through. This is the ultimate engagement metric — these viewers received your full message, saw your complete story, and experienced your entire call-to-action. Completion rates vary significantly by video length: shorter videos naturally achieve higher completion rates.

***

## When to Use

| Scenario                     | Action                                                   |
| ---------------------------- | -------------------------------------------------------- |
| Full message delivery        | Completions confirm viewers absorbed your entire message |
| Video length optimization    | Compare completion rates across video lengths            |
| High-value audience building | Create retargeting audiences from video completers       |
| Content effectiveness        | High completions indicate compelling content throughout  |

***

## Related Metrics

| Metric                                                                                                           | Relationship                                           |
| ---------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------ |
| [TikTok Video 75% Completion Views](/reference/metrics/advertising/tiktok/tiktok-video/tiktok-video-p75-watched) | Previous stage in the completion funnel                |
| [TikTok Video Plays](/reference/metrics/advertising/tiktok/tiktok-video/tiktok-video-plays)                      | Starting point for calculating overall completion rate |
| [TikTok Video Views](/reference/metrics/advertising/tiktok/tiktok-video/tiktok-video-views)                      | 6-second views for comparison                          |

[See all TikTok Video metrics →](/reference/metrics/advertising/tiktok/tiktok-video)