How to find area in AutoCAD drawings, here are three different ways

In AutoCAD you can find the area of closed geometries in many ways, the most obvious one is using AREA command. There are also some indirect ways of finding areas which are interesting and sometimes useful depending on the situation.

If you prefer video then here it is, else scroll down for the complete article.

In this article I will explain three different methods of finding areas with AutoCAD, I will use the geometry shown in the image below for explaining this tip.

AREA command:

In order to find the area of rectangle or circle from the image above type AREA on the command line and press enter. Now command line will show a prompt with many options as shown in the image below.

finding area in autocad (2)

Select Object from this prompt and click on the boundary of Rectangle or Circle for which you want to find the area. The area of the object will appear above command line along with its perimeter or circumference.

In a similar way, you can find the area of any closed Polyline geometry with AREA command. Watch this video for a detailed tutorial on Area command and other tools related to finding different geometrical properties of an object in AutoCAD.

Using hatch:

You can use hatch command also to find the area of enclosed geometries. In the example drawing shown above area B (indicated by blue color) is enclosed by circle and rectangle and you can make a hatch in that area and find the area of that region using area of the hatch.

How to find area in AutoCAD

Create a hatch in region B of sample drawing, you can use any hatch pattern for this. Now exit hatch command and select hatch created in area B then right click and select properties from the contextual menu.

A property palette will appear, scroll down in the palette and locate geometries panel there you will see Area of the hatch. This hatch area will also be the area of enclosed geometry.

Using JOIN command:

Let’s take the example of figure D from sample drawing shown above.

In this case, we have a geometry made up of Spline, Line and Arc. You can’t use AREA command on this geometry because we don’t have a single object here so I will use JOIN command for finding its area.

How to find area in AutoCAD

Type J on the command line and press enter now select complete geometry and press enter again, this will join complete geometry into a single unit.

Now select geometry then right-click and go to properties from the contextual menu, scroll down in this menu and here too you will the see area and total boundary length of the closed geometry.

Instead of using JOIN command you can also use REGION for combining geometries into a single unit and then find its area from properties palette.

Do you have any questions related to finding the area? let me know in comments below.

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2018-09-25T02:48:47+00:00

About the Author:

I am a mechanical engineer and I have worked with Design, Manufacturing and Training industries but now SourceCAD is my full-time work and I use it to train students all over the world. I also train corporate clients and help them develop the skill set of their workforce. I am Autodesk AutoCAD Certified Professional and an Autodesk expert elite member. I am a regular contributor of AUGI World magazine and apart from SourceCAD I also develop AutoCAD video courses for Pluralsight and other E-Learning businesses.

7 Comments

  1. Elias November 8, 2018 at 11:11 pm - Reply

    I think it would be so usefuI think it would be very useful if Autocad had a command that, when clicking on a closed polyline, the program automatically created a leader with the area of ​​the object. I consider it a great improvement for a new version. When a project needs to work with an inventory of areas, better visibility of each region in the drawing would help a lot.

  2. Sharline Wilson-Sadler September 18, 2018 at 7:20 pm - Reply

    Hello,
    How can i show the dimension in the plan so the area dimension changes with the update of a polyline?

  3. Rajeev June 17, 2018 at 12:17 pm - Reply

    Simply Su8per

  4. Av April 3, 2018 at 10:53 am - Reply

    hey jaiprakash , how to calculate area in sqft & sqmt ?

  5. Keith May 10, 2017 at 7:53 am - Reply

    Hello Jaiprakash,

    I have a question about areas. We had a drawing at work and someone in our office calculated the area by using a polyline, then another person calculated the same area by hatch. They both came out with different areas, do you know what would cause that? Is it better to calculate by hatch or by area?

    Thanks,
    Keith

    • Joe March 2, 2018 at 10:58 pm - Reply

      First off, the best option is to always let autocad do the math for you. I would pick the hatch for a reliable source. If someone did manual calculations on the polylines, there is room for human error. Or the polylines could have been on a z value which increased the total length.

      Also try joining the polylines using join or PE (M) – Join. Once the lines are all joined and if they are a closed polyline, the total area will appear in properties.

  6. John m December 19, 2015 at 9:48 pm - Reply

    I should posts and add on article on how to use tables to add areas to other areas and use the code to paste into a seperate table.

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