Enla, engineer's Length and Area add-in.

Select lines, polylines, circles or hatches in Autodesk® AutoCAD® and have their length and area values in a list. You can also select solids, and have their volume or centroid.


Basic use:

  • select, copy, zoom
  • check values, to find the object you need
  • insert into drawing, as MText, Text or (dynamic) Block
  • export to TXT, CSV, or JSON

And of that will cover most of your daily needs.


Advanced use

  • use formula field to evaluate values received from objects with your own custom math expressions
  • insert as combined text, next to each object, or pick location
  • insert (dynamic) blocks, with attributes filled with result of functions
  • override block position to match results of math expression
  • override dynamic block properties such as flip parameters or visibility to match result of expressions


To evaluate objects, use standard math expressions in formula tab with optional Enla variables, read directly from selected object:

variable description
L length
A area
V volume
tag custom text tag, saved to object in drawing
n position of object within list
cc incremental value, number of clicks on cumulative button
start start point of line, polyline or similar
end end point
center center point of any object
centroid centroid point, if available


or group variables (for aplicable functions)

group variable description
Lt total length of all objects
Ls length of objects selected in list
At total area of all objects
As area of objects selected in list


Functions are standard math or logic functions, with introduction of a few special

function name description

group function, returns array of results of previous function

Important: to avoid circular definitions, all functions are calculated from top to bottom for each function in sequence

x(), y(), z() get single value out of point (start, end...)
val("any text")  evaluates text (usefull for custom vars, since they are all text)
text(num,"0#") apply custom formating, using custom strings



sum(Lt) sum of lengths of all objects
average(As) average area of objects selected in list
L * 100 / sum (Lt) percentage of length in relation to total length
L > average (Lt) 1 or 0, compare how individual L relates to the average length



  • if some function accepts two parameters, they must be separated properly with either ; or , sign, depending on your preset windows settings.
  • rembember the order of calculations (top to bottom, then left to right)
  • take care, double check results - it may be not what you need need, or it may be wrong all together

Acerca de esta versión

Versión 3.2.0, 23/03/2021
Added latest support. No change in version number.

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  • Time Saver
    Berkan Alper Kaya | diciembre 07, 2018 Descarga verificada (¿Qué es esto?)

    This is the great application that most people need.

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