# Unit of measurement for features

**URL:** <https://discourse.slicer.org/t/unit-of-measurement-for-features/26995>\
**Category:** Support\
**Created:** [December 31, 2022, 7:41pm UTC](https://discourse.slicer.org/t/unit-of-measurement-for-features/26995 "2022-12-31T19:41:56Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Nima\_Yousefi](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/nima_yousefi/32/66845_2.png) [@Nima\_Yousefi](https://discourse.slicer.org/u/Nima_Yousefi)\
**Post date:** [December 31, 2022, 7:41pm UTC](https://discourse.slicer.org/t/unit-of-measurement-for-features/26995/1 "2022-12-31T19:41:56Z")

</div>

Hi all,

What’s the unit of measurements for shape/textures and first order features?

I know some of them are mm/mm^2 or mm^3 but not sure which one is.

Please correct me if I’m wrong.

Thanks.