Hide Table of Contents

Dimensions in 3D Sketches


When working in a 3D sketch, you can sketch lines to the approximate length, and then dimension them.

You can add a length dimension by selecting two points, a line, or two parallel lines.

You can add an angular dimension by selecting either three points or two lines.

Video: 3D Dimensions


You can sketch, add relations, and dimension arcs in 3D space.

Dimensions can exist between different arcs such as a circle and a 3 point arc on the same or different 3D sketch planes.


You can add angular dimensions between 3D sketch planes.

Adding Angular Dimensions Between 3D Sketch Planes

To add angular dimensions between 3D sketch planes:

  1. Double-click one 3D sketch plane to make it active.
  2. Right-click on the edge of the 3D sketch plane to which you want to dimension, and select Smart Dimension.
  3. With the second plane selected, click inside the active plane to add the dimension.


Provide feedback on this topic

SOLIDWORKS welcomes your feedback concerning the presentation, accuracy, and thoroughness of the documentation. Use the form below to send your comments and suggestions about this topic directly to our documentation team. The documentation team cannot answer technical support questions. Click here for information about technical support.

* Required

Subject:   Feedback on Help Topics
Page:   Dimensions in 3D Sketches
*   I acknowledge I have read and I hereby accept the privacy policy under which my Personal Data will be used by Dassault Systèmes

Print Topic

Select the scope of content to print:


We have detected you are using a browser version older than Internet Explorer 7. For optimized display, we suggest upgrading your browser to Internet Explorer 7 or newer.

 Never show this message again

Web Help Content Version: SOLIDWORKS 2013 SP05

To disable Web help from within SOLIDWORKS and use local help instead, click Help > Use SOLIDWORKS Web Help.

To report problems encountered with the Web help interface and search, contact your local support representative. To provide feedback on individual help topics, use the “Feedback on this topic” link on the individual topic page.