AutoCAD

How to Change Units in AutoCAD 2025?

Understanding AutoCAD Units

When working with AutoCAD, it’s essential to understand how to set and change units properly. This ensures that your drawings are accurate and correspond to real-world dimensions.

Step-by-Step Guide to Changing Units in AutoCAD 2025

1. Initiate a New Drawing

Start AutoCAD 2025 and create a new blank drawing to begin the unit adjustment process.

2. Access the Units Command

Type the command UNITS in the command line and press Enter. This will open the Drawing Setup dialog box.

3. Configure the Unit Type

Within the Drawing Setup dialog, locate the “Type” dropdown menu. Here, you can select the appropriate unit type according to your needs, such as Decimal, Architectural, or Engineering.

4. Adjust Insertion Scale

In the same dialog, find the “Insertion Scale” section, which defines how AutoCAD interprets measurements. Select your desired units, such as Feet, Millimeters, or Meters, depending on the scale of your project.

5. Set Precision

You can also adjust the precision of your units in the dialog box. Select the desired decimal places that you wish your measurements to reflect for clarity and accuracy.

6. Save Settings as Default

If you want your selected units to be the default for future drawings, check the box labeled “Save as Default” before clicking OK to apply the changes.

Change Existing Drawing Units

1. Open the Drawing

Load the existing drawing for which you need to modify the units.

2. Use the Scale Command

Go to the Home tab and find the Modify panel. Click on the Scale command, then select the objects you wish to resize.

3. Define the Base Point

Enter a base point of 0,0 to maintain consistency in scaling the selected objects across the drawing.

4. Enter Scale Factor

Input the appropriate scale factor for the conversion. For example, if converting from inches to centimeters, you might use a scale factor of 2.54.

Monitor Units in Your Drawing

1. Verify Current Units

To determine the current unit settings, navigate to the Application menu at the top left corner. Select the Drawing Utilities option and then click on Units. This will provide details regarding the current settings.

2. Responding to Unit Changes

Be aware that changing the units will alter all existing values in the drawing to reflect the new settings.

FAQs

Q1: Why is it important to set the correct units in AutoCAD?
Setting the correct units is crucial to ensure that your designs are accurately represented and that measurements correspond to real-world dimensions.

Q2: Can I change the units for specific elements in a drawing?
Yes, you can modify units for specific items using the Scale command, allowing different parts of the drawing to maintain separate measurement settings if needed.

Q3: How can I revert back to previous unit settings?
If you wish to return to previous settings, you can open the Drawing Setup dialog and select the original units. Make sure to save changes to keep these settings whenever you start a new drawing.

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.