AutoCAD

How To Calculate Value In AutoCAD?

Understanding Calculations in AutoCAD

Calculating values in AutoCAD involves a combination of built-in commands and tools that streamline various mathematical operations, including area calculation, distance measurement, and object counting. This guide provides a detailed overview of how to execute these calculations effectively in AutoCAD 2025.

Calculating Area and Perimeter

To determine the area or perimeter of shapes within your drawing, use the AREA command. Follow these steps:

  1. Activate the command line by typing AREA and pressing Enter.
  2. Choose the Object option when prompted to select a shape.
  3. Click on the boundary of the shape (e.g., a rectangle or circle) that you want to measure.
  4. The area value will be displayed in the command line, along with the perimeter or circumference.

Creating Custom Formulas

Custom calculations can be made by utilizing fields and formulas in tables. To create a formula, follow these steps:

  1. Select a cell in the table where you wish to create the formula.
  2. Navigate to the Table Cell contextual ribbon.
  3. Click on the Field option.
  4. In the Field dialog box, select the Objects category.
  5. From the Field Names dropdown, choose Formula.
  6. Input the desired calculation using standard arithmetic operators (+, -, *, /).
  7. If needed, choose a format and decimal separator.
  8. Confirm by clicking OK.

Working with Distance Calculations

AutoCAD allows you to calculate distances directly from the drawing space. To measure distance:

  1. Type MEASURE or use the DISTANCE command in the command line.
  2. Click on the starting point of the line or shape.
  3. Then click on the endpoint of that line or shape.
  4. The distance will be shown in the command line for use in further calculations.

Counting Objects

For counting specific objects in your drawing, use the Quick Select tool as follows:

  1. Right-click in the drawing area and select Quick Select.
  2. In the Object Type dropdown, choose the type of entity you want to count.
  3. You can filter further by selecting specific properties if needed.
  4. Click OK to execute the count, which will appear in the command line.

Finding the Perimeter of Shapes

To ascertain the perimeter of closed shapes, calculate the sum of all sides. For a rectangle, for example:

  1. Measure the length (x) and width (y) of the rectangle.
  2. Use the formula: Perimeter = 2(x + y) to derive the total length of the boundary.

Frequently Asked Questions

Can AutoCAD perform complex mathematical calculations?

Yes, AutoCAD can handle a variety of mathematical computations, including formulas in tables and various geometric calculations using commands.

How can I convert units in AutoCAD?

You can convert units by creating a calculation directly in a text field or using the Convert command available in the settings. Be sure to adjust the units in your drawing settings accordingly.

Is there a command for fast measurement in AutoCAD?

Yes, the MEASURE command is efficient for quickly measuring distances and angles in your drawings without the need for manual annotations.

About the author

Wei Zhang

Wei Zhang

Wei Zhang is a renowned figure in the CAD (Computer-Aided Design) industry in Canada, with over 30 years of experience spanning his native China and Canada. As the founder of a CAD training center, Wei has been instrumental in shaping the skills of hundreds of technicians and engineers in technical drawing and CAD software applications. He is a certified developer with Autodesk, demonstrating his deep expertise and commitment to staying at the forefront of CAD technology. Wei’s passion for education and technology has not only made him a respected educator but also a key player in advancing CAD methodologies in various engineering sectors. His contributions have significantly impacted the way CAD is taught and applied in the professional world, bridging the gap between traditional drafting techniques and modern digital solutions.