# How can I calculate an area on a CT image. I can calculate volumes (mm^3) but not areas (mm^2)

**URL:** https://discourse.slicer.org/t/how-can-i-calculate-an-area-on-a-ct-image-i-can-calculate-volumes-mm-3-but-not-areas-mm-2/1549
**Category:** Support
**Created:** [November 28, 2017, 9:09pm UTC](https://discourse.slicer.org/t/how-can-i-calculate-an-area-on-a-ct-image-i-can-calculate-volumes-mm-3-but-not-areas-mm-2/1549 "2017-11-28T21:09:20Z")
**Posts on this page:** 1
**Showing post:** 12

<div class="post-metadata">

### Author: ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)
#### Post date: [August 3, 2020, 9:13pm UTC](https://discourse.slicer.org/t/how-can-i-calculate-an-area-on-a-ct-image-i-can-calculate-volumes-mm-3-but-not-areas-mm-2/1549/12 "2020-08-03T21:13:17Z")

</div>

@Sunilkumar_Leishangt - can you try the method described in this post? It would be great if you could compare it to results from the CT console and let us know how it goes.

[New module for measuring cross-section area of segments](https://discourse.slicer.org/t/new-module-for-measuring-cross-section-area-of-segments/11293)

---

_[View the full topic](https://discourse.slicer.org/t/how-can-i-calculate-an-area-on-a-ct-image-i-can-calculate-volumes-mm-3-but-not-areas-mm-2/1549)._