> ## 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 50% Completion Views: Half Watched

> Track TikTok views where viewers watched at least 50% of your video. Measure mid-video engagement in your completion funnel.

<Tip>
  TikTok Video 50% Completion Views counts views where viewers watched at least half of your video — indicating moderate viewing engagement.
</Tip>

## Formula

<Info>
  **TikTok Video 50% Completion Views** = **SUM** ( 50% Completion Views )
</Info>

### Formula Components

| Metric                   | Definition                                               |
| ------------------------ | -------------------------------------------------------- |
| **50% Completion Views** | Each instance a viewer watched at least 50% of the video |

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

***

## Example

Your campaign videos achieved **297,500 at 25%** with **178,500 reaching 50%** — a 60% retention from quarter to halfway.

| Video        | 25% Views   | 50% Views   | 25→50% Retention |
| ------------ | ----------- | ----------- | ---------------- |
| Product Demo | 148,000     | 96,200      | 65.0%            |
| Brand Story  | 101,500     | 55,825      | 55.0%            |
| Tutorial     | 48,000      | 26,475      | 55.2%            |
| **Total**    | **297,500** | **178,500** | **60.0%**        |

***

## How It Works

TikTok records a 50% completion when viewers reach the midpoint of your video. This metric measures sustained engagement beyond the initial hook. For a 60-second video, 50% completion means 30 seconds watched. The 50% mark is critical for delivering your core message.

***

## When to Use

| Scenario                | Action                                                             |
| ----------------------- | ------------------------------------------------------------------ |
| Mid-video retention     | High 50% rates indicate content holds attention through the middle |
| Content pacing analysis | Large 25%→50% drop suggests mid-video content needs work           |
| Message delivery timing | Ensure key information appears before the 50% mark                 |
| Comparing video lengths | Shorter videos often have higher 50% rates                         |

***

## Related Metrics

| Metric                                                                                                           | Relationship                            |
| ---------------------------------------------------------------------------------------------------------------- | --------------------------------------- |
| [TikTok Video 25% Completion Views](/reference/metrics/advertising/tiktok/tiktok-video/tiktok-video-p25-watched) | Previous stage in the completion funnel |
| [TikTok Video 75% Completion Views](/reference/metrics/advertising/tiktok/tiktok-video/tiktok-video-p75-watched) | Next stage in the completion funnel     |
| [TikTok Video Completions](/reference/metrics/advertising/tiktok/tiktok-video/tiktok-video-completions)          | Final stage — 100% completion           |

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