The Revit batch unit conversion tool has been updated to work with Revit 2021. For those not familiar with the tool, it allows you to convert the current document, or to batch process families to convert them from metric to imperial.

Please refer to the updated posts regarding the unit conversion tool here:

Details of updates in the following posts:
Revit Bulk Unit Conversion Addin | REVIT.AU
Revit Bulk Unit Conversion Addin – digitalBBQ

I have released the source code for both the old version (pre-2022 versions of Revit) and the new version (for 2022+). You can view the code on GitHub here:

GitHub – Revit Unit Conversion Addin – pre-2022 version
GitHub – Revit Unit Conversion Addin – 2022 and newer version

You can download the Unit Conversion Addin here: Revit Unit Conversion Addin | REVIT.AU

To assure users that there is no malicious code in the file provided, please refer to the VirusTotal results, which have been run directly on the file hosted on GitHub. A snapshot of the results are below: