> For the complete documentation index, see [llms.txt](https://docs.besmart.software/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.besmart.software/common-for-several-products/sort-mark/calculate-elevations.md).

# Calculate Elevations

This feature of Sort Mark **calculates the elevation values** for elements of the selected category and writes the values to the selected parameter (length-type).

Run the **Calculate Elevation** command and select a parameter to write the values to or create a new shared parameter.

In the example below, a new shared parameter **Z coordinate** is created to write the elevation values.

![](/files/I4dRdkbknjf5Y16pxAjt)

You can choose between the project elevation (Project Base Point) and shared elevation (the Survey Point). And you can choose to measure either the Top or the Bottom of elements. **OK** to run the command.

![](/files/MhNyzDr95ifPgzwz9cPl)

Elevations of door bottom points are written into the new shared **Z coordinate** parameter.

{% hint style="info" %}
For more options and customizable formatting of coordinate values or elevations, use the [**Element Numbering**](/common-for-several-products/sort-mark/room-space-sheet-element-numbering.md) functionality.
{% endhint %}

![](/files/wpMTLjAuYrV8e80BvPtt)


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