AutoCAD

How to Calculate Total Length in AutoCAD?

Understanding Total Length in AutoCAD

Total length refers to the measure of distance that can be calculated for objects within your AutoCAD design, whether they are lines, polylines, arcs, or other geometric shapes. Accurately determining this length is essential for precise drafts and engineering projects.

Step-by-Step Process to Calculate Total Length in AutoCAD

  1. Select the Appropriate Layer:
    Begin by ensuring that you are working on the correct layer. Use the Layer Properties Manager to activate the desired layer where your objects are located.

  2. Use the Properties Palette:

    • To check the total length of selected objects, you can either use the Properties palette or the Command line.
    • Select the object (or multiple objects by holding down the Shift key) for which you want to determine the total length.
  3. Command Line Method:

    • After selecting your objects, look at the Command line at the bottom of the AutoCAD window. The total length will be displayed there.
    • Ensure the settings are configured to see the unit of measurement you prefer, whether in feet or meters.
  4. Using the Measure Tool:

    • Alternatively, you can employ the Measure tool for more detailed control.
    • Go to the Home tab, locate the Utilities panel, and click on the Measure drop-down menu.
    • Select the "Measure" option, then click along the desired path to get an instant calculation of the length.
  5. Viewing Object Properties:
    • For individual objects, right-click on the selected object and choose "Properties" from the context menu.
    • In the Properties window, look for "Length". This will provide a detailed measurement of the selected object.

Summing up Multiple Polylines

When needing to sum the lengths of polylines, the ‘Join’ function comes in handy.

  1. Activate the Edit Polyline Tool:
    Go to the Home tab and find the Modify panel. Click on ‘Edit Polyline’, or simply type PEDIT in the Command line.

  2. Select Your Objects:
    Click on the first polyline you wish to edit.

  3. Join the Polylines:

    • After selecting the first one, enter ‘j’ for join.
    • Then proceed to select other polylines or lines that are end-to-end with the first one, which allows AutoCAD to sum their lengths into one continuous polyline.
  4. Finalize the Command:
    When all desired segments are selected, press Enter to complete the command. The total length of the joined polyline can be seen in the Properties palette.

Measuring Complex Shapes

For intricate shapes that include a combination of lines, arcs, and curves, the following approach gives clarity:

  1. Access the Measure Tool:

    • On the Home tab, navigate to the Utilities panel and choose ‘Measure’.
  2. Trace the Shape:

    • Click on the shape’s edges and corners to create a measurement path.
    • Each click records the segments, and upon completion by double-clicking, you will receive the total length calculated.
  3. Inspecting Measurements:
    • After tracing the shape, AutoCAD will display the length in the Command line. Adjust your view to ensure you capture all needed sections of the shape.

FAQ

What units does AutoCAD use for measuring length?
AutoCAD allows for measurement in various units. You can set these preferences in the drawing unit settings, typically in feet, meters, or other specified units.

Can I calculate the total perimeter of a shape in AutoCAD?
Yes, you can calculate the perimeter similarly to measuring total length. Use the same tools and methods to measure the total outer edge distance around your shape.

Is it possible to get an area measurement in AutoCAD?
Absolutely. The area can be measured using the ‘Area’ command. Select your shape and follow the prompts in the Command line to receive an area calculation.

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.