AutoCAD

How to Use Total Length in AutoCAD

Understanding Total Length in AutoCAD

Knowing how to calculate the total length of objects in AutoCAD is essential for precise design work. This guide will walk you through the methods to measure and manage lengths effectively within AutoCAD, specifically focusing on polylines, lines, and other geometric shapes.

Accessing Measurement Tools

To begin measuring lengths in AutoCAD, ensure you have the correct tools accessible:

1. Open AutoCAD and load your project.
2. Go to the **Home** tab on the ribbon.
3. Locate the **Utilities** panel, where you can find various measurement tools.

Measuring Total Length of Polylines

To measure the total length of polylines in AutoCAD, follow these detailed steps:

1. **Select the Polyline**: Click on the polyline whose length you want to measure. This will highlight the object.
2. **Utilize the Properties Palette**: Access the properties by pressing **Ctrl + 1** on your keyboard. This opens the Properties palette, displaying various details about the selected polyline.
3. **Check the Length**: In the Properties palette, find the “Length” field. This will show the total length of the selected polyline.

Alternatively, you can use the *Measure* command for more complex polylines:

1. Type `MEASURE` in the command line and press **Enter**.
2. Select your starting point on the polyline.
3. Click along the polyline to mark each bend or corner.
4. Once finished, press **Enter** to view the total measured length as displayed in the command line.

Summing Lengths of Multiple Lines

To find the total length of multiple lines or polylines that may or may not be connected:

1. **Select the Lines**: Click and drag to select multiple lines, or hold **Shift** and click each one individually.
2. **Use the Properties Palette**: Similar to measuring a single polyline, open the Properties palette using **Ctrl + 1**.
3. **View Total Length**: The Length field will display the cumulative length of all selected objects.

Another way to get the total length of several objects is to use a command:

1. Type `LIST` in the command line and press **Enter**.
2. Select all the lines and polylines for which you want to know the total length.
3. Press **Enter**. The command line will display details, including the cumulative length of all selected objects.

Checking Dimensions and Ensuring Accuracy

AutoCAD has dimensions tools to assist in accurate measuring:

1. Enable **Dynamic Input**: Press **F12** to turn on dynamic input, which allows you to see lengths and angles as you draw.
2. Add Dimension Lines: Use the **DIMLINEAR** command to create dimension lines that will visually represent lengths within your design.
3. Inspect your Drawing Settings: Ensure your drawing scale and units are set correctly to reflect the proper measurements in your drawings.

Finding Length in AutoCAD 2025 Using Additional Methods

Besides using the commands and properties mentioned, AutoCAD 2025 also introduces enhanced features for measuring:

1. **Quick Measure Tool**: In the **Home** tab, under **Utilities**, there is a Quick Measure tool that allows you to hover over the object and see its length and other parameters.
2. **Command Line Techniques**: Familiarize yourself with command line shortcuts, which provide quick access to measurement functions.

Frequently Asked Questions

**1. How can I change units of measurement in AutoCAD?**
To change the unit of measurement, go to the **Application Menu**, click on **Drawing Utilities**, and choose **Units**. Here, you can set the desired measurement units for your project.

**2. What is the difference between measuring polyline length and line length in AutoCAD?**
Measuring a polyline encompasses the total length of continuous segments, including curves, whereas measuring individual lines only captures the straight length from one end to the other.

**3. Why am I unable to see the length of my lines or dimensions in AutoCAD?**
If dimensions or lengths are not displaying, check your layer settings to ensure they are visible. Also, confirm that the text size for dimensions is appropriately set for the drawing scale.

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.