AutoCAD

How To Check The Length Of A Line In AutoCAD?

Understanding Line Length Measurement in AutoCAD

Checking the length of a line or polyline in AutoCAD is an essential skill for anyone involved in drafting or design work. Whether you’re working on detailed blueprints or simple layouts, knowing how to accurately measure lengths can help ensure precision. Below are detailed steps to find the length of a line or polyline in AutoCAD.

Finding the Length of a Single Polyline

  1. Select the Polyline: Click on the polyline you wish to measure. Ensure that it is highlighted to confirm your selection.

  2. Open the Properties Palette: Right-click on the selected polyline and choose "Properties" from the context menu. Alternatively, you can press Ctrl + 1 to open the Properties palette.

  3. Locate the Length Value: Within the Properties palette, look for the ‘Length’ field. This value indicates the total length of the polyline you selected.

Measuring Multiple Lines

To measure the combined length of multiple lines:

  1. Access the MEASURE Command: Type MEASURE in the command line and press Enter. A menu will appear for you to select the area you want to measure.

  2. Choose the Lines: Select each line that you want to include in the measurement. Hold down the Shift key to select multiple lines easily.

  3. View the Total Length: After selecting all desired lines, you will see the total length displayed in the command line. This provides you with a comprehensive measurement of the selected entities.

Setting Length While Drawing

When you need to create a line of a specific length:

  1. Activate the Line Tool: Go to the Home tab, click on the Draw panel, and select ‘Line’.

  2. Specify the Starting Point: Click on the canvas to set the initial point of the line.

  3. Enter Length and Direction: Move your cursor in the desired direction and then type in the length you want the line to be (e.g., 10.0), followed by pressing Enter. This creates a precise line of the specified length.

Finding Angles Between Lines

To measure angles between two lines in AutoCAD:

  1. Navigate to the Measure Panel: Click on the Review tab and find the Measure drop-down menu.

  2. Select Angle Measurement: Choose the ‘Angle’ option.

  3. Select Points on the Lines: Click on a point on the first line, then click at the intersection with the second line, and finally select a point on the second line. The calculated angle will appear as a dimension label.

Drawing Lines at Specific Angles

For drawing a line at a precise angle:

  1. Select the Line Option: Click on the Home tab, find the Draw panel, and choose ‘Line’.

  2. Set the Starting Point: Specify where you want the line to begin.

  3. Input the Angle: Type < followed by the angle in degrees (for instance, <30) to indicate the direction. Press Enter to fix the angle.

  4. Specify Length: After determining the angle, enter the length for the line.

Using the Distance Measurement Tool

To measure the distance between two objects in your drawing:

  1. Utilize the ALIGN Command: Access the Home tab, then click on the Modify panel. Select ‘Align’.

  2. Select the Objects: Choose the objects you want to measure between.

  3. Specify Points: Click to define an axis for spacing and select start and end points. The distance between the selected objects will be displayed.

Frequently Asked Questions

How do I access the measuring tools within AutoCAD?
You can access the measuring tools by navigating through the Review tab, where you will find various options for measuring lengths, areas, and angles.

What units does AutoCAD use for measuring length?
By default, AutoCAD uses the units set in the drawing settings, which can be configured to use different systems like metric (meters, centimeters) or imperial (inches, feet).

How can I change the measurement settings in AutoCAD?
To change measurement settings, go to the Application menu, select Options, and then find the User Preferences tab. Here, you can adjust units and other measurement-related settings to suit your needs.

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.