# Revit (Metric) and Dynamo (Imperial)? - R2020 D2.3

**URL:** <https://forum.dynamobim.com/t/revit-metric-and-dynamo-imperial-r2020-d2-3/56587>\
**Category:** Uncategorized\
**Created:** [October 26, 2020, 9:43am UTC](https://forum.dynamobim.com/t/revit-metric-and-dynamo-imperial-r2020-d2-3/56587 "2020-10-26T09:43:30Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Thomas\_Perkov](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/thomas_perkov/32/25176_2.png) [@Thomas\_Perkov](https://forum.dynamobim.com/u/Thomas_Perkov)\
**Post date:** [October 26, 2020, 9:43am UTC](https://forum.dynamobim.com/t/revit-metric-and-dynamo-imperial-r2020-d2-3/56587/1 "2020-10-26T09:43:30Z")

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Hi,  
How do I change Dynamo to Metric?  
All my Revit Units are metric millimeters, but Dynamo nodes use imperial feet?

Manual input in revit:

 ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/b/9/b9b687524342c5a910841465cb135f1a8d1e505d.png)

E.g. Element.SetParameterValyue

 ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/1/3/13eb3bd3c313dea670921a5e6f1ecf10e7eb60d0.png)

 ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/f/a/fa4c7b5a9d041370b69e311202445228320e72f8.png)

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**Author:** ![SeanP](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/seanp/32/42560_2.png) [@SeanP](https://forum.dynamobim.com/u/SeanP)\
**Post date:** [October 26, 2020, 10:44am UTC](https://forum.dynamobim.com/t/revit-metric-and-dynamo-imperial-r2020-d2-3/56587/2 "2020-10-26T10:44:39Z")

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You will have to convert them in your graph. There are nodes to help, or just do the math manually.

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<div class="post-metadata">

**Author:** ![Thomas\_Perkov](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/thomas_perkov/32/25176_2.png) [@Thomas\_Perkov](https://forum.dynamobim.com/u/Thomas_Perkov)\
**Post date:** [October 26, 2020, 10:59am UTC](https://forum.dynamobim.com/t/revit-metric-and-dynamo-imperial-r2020-d2-3/56587/3 "2020-10-26T10:59:14Z")

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I have always been able to input millimeters… Besides the API, it should not be necessary to convert to feet in Dynamo.

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**Author:** ![infeeeee](https://avatars.discourse-cdn.com/v4/letter/i/e480ec/32.png) [@infeeeee](https://forum.dynamobim.com/u/infeeeee)\
**Post date:** [October 26, 2020, 11:39am UTC](https://forum.dynamobim.com/t/revit-metric-and-dynamo-imperial-r2020-d2-3/56587/4 "2020-10-26T11:39:10Z")

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It’s not Dynamo, Revit uses inches under the hood.

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**Author:** ![Thomas\_Perkov](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/thomas_perkov/32/25176_2.png) [@Thomas\_Perkov](https://forum.dynamobim.com/u/Thomas_Perkov)\
**Post date:** [October 26, 2020, 12:28pm UTC](https://forum.dynamobim.com/t/revit-metric-and-dynamo-imperial-r2020-d2-3/56587/5 "2020-10-26T12:28:14Z")

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I know, but it has never been necessary to convert to imperial units. Dynamo normally follows the units used in the Revit project…

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<div class="post-metadata">

**Author:** ![Thomas\_Perkov](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/thomas_perkov/32/25176_2.png) [@Thomas\_Perkov](https://forum.dynamobim.com/u/Thomas_Perkov)\
**Post date:** [October 26, 2020, 6:35pm UTC](https://forum.dynamobim.com/t/revit-metric-and-dynamo-imperial-r2020-d2-3/56587/6 "2020-10-26T18:35:07Z")

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Problem solved!  
The DynaMEP package also have a node called Element.SetParameterValueByName… Same name, inputs, and output. This node does NOT follow the Revit units like other packages, it uses imperial units!!! ☹