> ## 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 Unique CTR: Percentage of Reach That Clicked

> Track your unique click-through rate across Meta, Google, and TikTok ads. Measure what percentage of reached users clicked at least once.

<Tip>
  Blended Unique CTR measures the percentage of unique users reached who clicked your ads at least once across all advertising channels.
</Tip>

## Formula

<Info>
  **Blended Unique CTR** = ( **Blended Unique Clicks** ÷ **Blended Reach** ) × 100
</Info>

### Formula Components

| Metric                                                                                                   | Definition                                                     |
| -------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------- |
| [**Blended Unique Clicks**](/reference/metrics/advertising/blended/blended-clicks/blended-unique-clicks) | Distinct people who clicked at least once across all platforms |
| [**Blended Reach**](/reference/metrics/advertising/blended/blended-audience/blended-reach)               | Unique users who saw your ads across all platforms             |

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

***

## Example

Your campaigns reached **850,000 unique users** with **12,750 unique clickers** last month.

| Metric                 | Value     |
| ---------------------- | --------- |
| Blended Unique Clicks  | 12,750    |
| Blended Reach          | 850,000   |
| **Blended Unique CTR** | **1.50%** |

***

## How It Works

Blended Unique CTR divides unique clickers by unique users reached across Meta, Google, and TikTok. Unlike standard CTR (which uses impressions), this shows what percentage of your actual audience engaged with your ads at least once.

***

## When to Use

| Scenario                      | Action                                            |
| ----------------------------- | ------------------------------------------------- |
| Measuring audience engagement | Compare to standard CTR for true reach conversion |
| Evaluating creative resonance | Higher unique CTR indicates broader appeal        |
| Assessing targeting quality   | Low unique CTR may signal poor audience fit       |
| Cross-platform benchmarking   | Compare engagement rates across unified audience  |

***

## Related Metrics

| Metric                                                                                               | Relationship                       |
| ---------------------------------------------------------------------------------------------------- | ---------------------------------- |
| [Blended Unique Clicks](/reference/metrics/advertising/blended/blended-clicks/blended-unique-clicks) | Numerator — unique clickers        |
| [Blended Reach](/reference/metrics/advertising/blended/blended-audience/blended-reach)               | Denominator — unique users reached |
| [Blended CTR](/reference/metrics/advertising/blended/blended-clicks/blended-ctr)                     | Impression-based CTR alternative   |

[See all Blended Clicks metrics →](/reference/metrics/advertising/blended/blended-clicks)