AutoCAD

How To Change Units Of Existing Drawing In AutoCAD?

Understanding Unit Changes in AutoCAD Drawings

Changing units in an existing drawing in AutoCAD can greatly influence how measurements and dimensions are interpreted in your design. The process involves several key steps to ensure that your drawings are accurately set to the desired unit system.

Access the Drawing Setup

  1. Open Your Drawing: Start by opening your existing drawing in AutoCAD.
  2. Open Utilities: Navigate to the top menu bar and select the “Utilities” option.
  3. Select Drawing Setup: From the drop-down menu, choose “Drawing Setup” to access the relevant configuration settings.

Navigate to the Units Tab

  1. Find Units Tab: Once in the Drawing Setup dialog, locate the “Units” tab. This section is crucial for adjusting measurement units.
  2. Choose Desired Units: Under the “Drawing Units” section, you’ll find various unit options. Select your desired unit of measurement, which could range from millimeters to inches, depending on your project’s requirements.

Adjust Scaling Options

  1. Scaling for Inserted Objects: If you intend to insert objects from other drawings that have different unit settings, it’s advisable to select the option “Scale Objects Inserted from Other Drawings.”
  2. Define Length and Precision: Specify the length types you wish to use, and set the precision level according to your project standards. This ensures that your dimensions are both accurate and compliant with your design specifications.

Saving Your Changes

  1. Apply Changes: After selecting your units and making necessary adjustments, confirm the changes by clicking the “OK” button within the dialog box.
  2. Set as Default (Optional): If you frequently work with the same units, consider checking the option to “Save as Default.” This will apply your selected unit settings to new drawings in the future.

Adjusting Units During Active Work

  1. Open the Application Menu: If you’re working in the drawing and need to change units, click the Application Menu button.
  2. Select Units: Go to the Drawing Utilities and then select “Units” to pull up the Units dialog box.
  3. Dropdown for Unit Type: Choose the appropriate linear unit type from the drop-down list based on the need of your project, adjusting for precision as required.

FAQs

How do I set units to millimeters in AutoCAD?

To set units to millimeters, access the Drawing Setup dialog using the UNITS command. Change the unit type to “Millimeters,” ensure that the “Save as Default” option is checked if desired, and confirm by clicking “OK.”

What units are the default settings in AutoCAD?

By default, AutoCAD uses inches as its unit of measurement. However, depending on the drawing setup, this can often be customized to other units such as millimeters or feet, according to the user’s requirements.

How can I convert my drawing from inches to centimeters in AutoCAD?

To convert units from inches to centimeters, open the drawing, access the Drawing Setup, select “Centimeters” from the units tab, and confirm your changes. Additionally, you may need to scale existing objects appropriately to maintain correct dimensions.

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.