# Is there a way to calculate the area of the faces of 3D cells (Hexahedral mesh)?

**URL:** https://discourse.paraview.org/t/is-there-a-way-to-calculate-the-area-of-the-faces-of-3d-cells-hexahedral-mesh/3459
**Category:** ParaView Support
**Created:** [January 30, 2020, 10:19am UTC](https://discourse.paraview.org/t/is-there-a-way-to-calculate-the-area-of-the-faces-of-3d-cells-hexahedral-mesh/3459 "2020-01-30T10:19:36Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Wico](https://discourse.paraview.org/user_avatar/discourse.paraview.org/wico/32/2882_2.png) [@Wico](https://discourse.paraview.org/u/Wico)
#### Post date: [January 30, 2020, 10:19am UTC](https://discourse.paraview.org/t/is-there-a-way-to-calculate-the-area-of-the-faces-of-3d-cells-hexahedral-mesh/3459/1 "2020-01-30T10:19:36Z")

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I want to let Paraview calculate the following aspect ratio:  
aspect ratio = (1/6)\*(face area of cell i/volume of cell i ^0.6667)

I manged using **Cell Size** fileter to calculate the volume of the each cell but this filter only calculate the area of 2D cells. **Mesh Quality** filter has the same issue.

This is an OpenFOAM mesh if it matters.