This helper plugin will display mesh dimensional data. It works in point, edge and polygon mode and displays individual lengths in point and edge mode, with total length. In polygon mode it displays area and total area of all selected polygons.
Point mode
Two or more points are selected and the length between them is displayed
Alternatively, selecting points which are not connected will provide you with distance between them without using mesh itself, just a shortest line between the tow.
In edge mode it calculates edge lengths
In polygon mode is calculates area
There are additional controls to choose custom colors and transform the resulting dimensions
To install simply import it into content browser
https://www.core4d.com/ipb/store/product/47-dimensions/
Requirements: Cinema version 2024+ is required