> For the complete documentation index, see [llms.txt](https://cardstock-studio.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cardstock-studio.gitbook.io/docs/design/templates-design-your-cards/formulas-in-text-number-fields.md).

# Formulas in Text / Number Fields

In addition to using [Text Style Presets](/docs/design/text-style-presets.md) , [Global Values](/docs/design/global-values.md), [Images](/docs/design/images.md), [Shapes](/docs/design/shapes.md) and [Prefabs](/docs/design/prefabs.md) in text fields, you can write formulas as well.

This works in `string` fields and `number` fields, such as the Transform position and width values.

{% hint style="info" %}
In all of these examples, use `<this>` instead of the current layers name to refer to the current layers properties.
{% endhint %}

{% hint style="info" %}
Boolean variables which resolve `true` or `false` will resolve as `1` or `0` respectively when used in formulas.
{% endhint %}

***

## Example 1

<div><figure><img src="https://2449056524-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FK6BdQXak9wiY4BdSf9Rq%2Fuploads%2FVfOumwoBtnSFsV8EqICQ%2FScreenshot%202026-08-06%20at%203.15.24%E2%80%AFPM.png?alt=media&amp;token=2142f87d-2095-44f1-9da3-ce7b79c55e31" alt=""><figcaption></figcaption></figure> <figure><img src="https://2449056524-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FK6BdQXak9wiY4BdSf9Rq%2Fuploads%2F4oYZZBAbUzYdCsdsdgZx%2FScreenshot%202026-08-06%20at%203.15.29%E2%80%AFPM.png?alt=media&amp;token=494726a4-a334-4299-8d5f-76ef6c8cd91b" alt=""><figcaption></figcaption></figure></div>

In the example above, the "Star" layer has a [Conditionals](/docs/design/templates-design-your-cards/conditionals.md) set to "Always Apply", which uses the formula:

&#x20;`{= <Attack Value.x> + <Attack Value.width> }`

"*Attack Value*" is another layer.&#x20;

***

## Example 2

<div><figure><img src="https://2449056524-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FK6BdQXak9wiY4BdSf9Rq%2Fuploads%2FEfINqIbgd0Gb48nSq3UT%2FScreenshot%202026-08-06%20at%203.20.34%E2%80%AFPM.png?alt=media&amp;token=c10e26c0-c6b6-4e79-bbde-74872681250c" alt=""><figcaption></figcaption></figure> <figure><img src="https://2449056524-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FK6BdQXak9wiY4BdSf9Rq%2Fuploads%2Fb6J37HCV1GHWdBRx7viL%2FScreenshot%202026-08-06%20at%203.20.37%E2%80%AFPM.png?alt=media&amp;token=13674438-dce2-4ae2-aa74-5242bf96d641" alt="" width="563"><figcaption></figcaption></figure></div>

In this example, the *Cost* variable is 12 (see the bottom right of the card). For demonstration purposes, I've updated the content of the text to be:

`{= <Cost> * 2 }`

This resolves to 24.


---

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