> For the complete documentation index, see [llms.txt](https://docs.buzzy.buzz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.buzzy.buzz/the-building-blocks/datatables-fields-and-data/advanced-fields/formula.md).

# Formula

Formula Field are calculated using JSONata and can refer to other fields in the Microapp. The result of the calculation is displayed in the field. An example of a Formula Field is a running tally.

For examples on the formulas, please see [example formulas](/the-building-blocks/datatables-fields-and-data/formulas.md)

### Settings

The calculation is specified using [JSONata](https://jsonata.org/).

The output of the calculation can be displayed as:

* Text
* Number
* Currency
* Date
* [FonteAwsome 4](https://fontawesome.com/)

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