> ## 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.

# Cost per Webinar Registered: Track Registration Cost

> Track the average ad spend per webinar registration. Calculate your cost per engaged prospect.

<Tip>
  Cost per Webinar Registered measures the average advertising spend required to generate one webinar registration.
</Tip>

## Formula

<Info>
  **Cost per Webinar Registered** = **Channel Spend** ÷ **Webinar Registered Events**
</Info>

### Formula Components

| Metric                                                                             | Definition                              |
| ---------------------------------------------------------------------------------- | --------------------------------------- |
| **Channel Spend**                                                                  | Total advertising spend across channels |
| [**Webinar Registered**](/reference/metrics/funnel/conversions/webinar-registered) | Total webinar registration events       |

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

***

## Example

Your B2B company spent **\$9,000** on ads and generated **450 webinar registrations** this month.

| Channel    | Spend       | Registrations | Cost per Registration |
| ---------- | ----------- | ------------- | --------------------- |
| LinkedIn   | \$5,000     | 200           | \$25.00               |
| Google Ads | \$3,000     | 180           | \$16.67               |
| Facebook   | \$1,000     | 70            | \$14.29               |
| **Total**  | **\$9,000** | **450**       | **\$20.00**           |

***

## How It Works

This metric divides your total channel spend by the number of webinar registrations. It measures the cost of acquiring engaged, high-intent prospects through webinar marketing, helping you optimize your event marketing budget.

***

## When to Use

| Scenario           | Action                                      |
| ------------------ | ------------------------------------------- |
| Event ROI          | Calculate cost per webinar registrant       |
| Channel efficiency | Compare registration costs across platforms |
| Budget planning    | Project costs for webinar campaigns         |
| Topic optimization | Compare costs by webinar type               |

***

## Related Metrics

| Metric                                                                                     | Relationship                  |
| ------------------------------------------------------------------------------------------ | ----------------------------- |
| [Webinar Registered](/reference/metrics/funnel/conversions/webinar-registered)             | Count of registrations        |
| [Webinar Registered Value](/reference/metrics/funnel/conversions/webinar-registered-value) | Value of registrations        |
| [Cost per Lead](/reference/metrics/funnel/conversions/cost-per-lead)                       | Overall lead acquisition cost |

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