> For the complete documentation index, see [llms.txt](https://help.impact.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.impact.com/brand/what-would-you-like-to-learn-about/platform-features/multi-program-reports/data-lab-custom-reports/create-custom-measures-in-data-lab.md).

# Create Custom Measures in Data Lab

{% hint style="success" %}
This feature is only available with specific impact.com editions or add-ons. [Contact us](https://app.impact.com/secure/advertiser/support/customer-support-portal-flow.ihtml) to upgrade your account and get access!
{% endhint %}

{% hint style="warning" %}
**Important:** We *highly* recommend you reference [Data Lab Introduction](/brand/what-would-you-like-to-learn-about/platform-features/multi-program-reports/data-lab-custom-reports/data-lab-introduction.md) before starting this article.
{% endhint %}

1. From the left navigation menu, select ![](/files/CDnwOBeIdds9r3Z6zTnO) **\[Engage] → Reports** → **Data Lab**.
2. Select a **visualization** to get started.
3. From the Dimensions and Measures section in the right toolbar, select ![](/files/Gl8lj5gLPbgSXGH8yWYa) **\[Create Custom Measure]**.

   <div data-with-frame="true"><figure><img src="/files/gJTWgjees2t25Z8F0oyc" alt="" width="355"><figcaption></figcaption></figure></div>
4. Name your custom Measure — the example below will show a measure called *Conversion Rate*.
5. Select your measure’s **Format**. You can choose between *Number*, *String*, *Percentage*, or *Currency*.
6. In the *Formula* field, enter the calculation for the custom measure.

   <div data-gb-custom-block data-tag="hint" data-style="info" class="hint hint-info"><p><strong>Example:</strong> The <em>Conversion Rate</em> measure will use <code>Actions Costs / Clicks</code>. impact.com will specify whether the formula is valid or not by a small <img src="/files/ZQArUgov9SVRGQNwvW6D" alt=""> <strong>[check mark]</strong> at the top-right of the window.</p></div>
7. Select **Save** to save your custom measure.

   <div data-with-frame="true"><figure><img src="/files/VDVCrIkiVA5Ej1WPAdm8" alt="" width="563"><figcaption></figcaption></figure></div>


---

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