> ## 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.

# Book Call: Call Booking Conversions

> Track call bookings from your website. Measure how many visitors schedule calls and optimize your lead generation funnel.

<Tip>
  Book Call counts the total number of call booking events tracked by the Upstack pixel — a key conversion metric for service-based businesses.
</Tip>

## Formula

<Info>
  **Book Call** = **COUNT** ( call\_booked events )
</Info>

### Formula Components

| Metric                  | Definition                                                                                       |
| ----------------------- | ------------------------------------------------------------------------------------------------ |
| **call\_booked events** | Individual call booking events fired when a visitor schedules a call through your booking system |

| Metadata        |                         |
| --------------- | ----------------------- |
| **Type**        | Number                  |
| **Data Source** | [Upstack Pixel](/pixel) |
| **Aggregation** | Count                   |

***

## Example

Your website generated **47 call bookings** in January from paid advertising campaigns.

| Channel    | Book Call Events | Conversion Rate |
| ---------- | ---------------- | --------------- |
| Meta Ads   | 28               | 2.8%            |
| Google Ads | 15               | 3.2%            |
| Organic    | 4                | 1.1%            |

***

## How It Works

The Upstack pixel fires a `book_call` event when a visitor completes a call booking action — typically when they submit a scheduling form or confirm an appointment through your booking widget. Each booking fires one event, regardless of whether the call is ultimately completed.

***

## When to Use

| Scenario                  | Action                                                                 |
| ------------------------- | ---------------------------------------------------------------------- |
| Measuring lead quality    | Compare Book Call volume against actual call completion rates          |
| Optimizing ad campaigns   | Identify which channels drive the most call bookings                   |
| Funnel analysis           | Track Book Call as the conversion step after Add to Cart or Form Start |
| Calculating cost per lead | Divide ad spend by Book Call count for cost per call booked            |

***

## Related Metrics

| Metric          | Relationship                                         |
| --------------- | ---------------------------------------------------- |
| Sessions        | Total visitors who could potentially book a call     |
| Form Starts     | Visitors who began the booking process               |
| Conversion Rate | Percentage of sessions that result in a call booking |

[See all Conversions metrics →](/reference/metrics/funnel/conversions)