Why Is SketchUp Circle Not Smooth?

Why Is SketchUp Circle Not Smooth?

If you have ever used SketchUp, you may have encountered a common issue where circles appear jagged and not smooth. This can be frustrating, especially when you want to create clean and precise designs. In this article, we will explore the possible reasons for this problem and discuss some solutions to achieve smooth circles in SketchUp.

Possible Causes

1. Low Segment Count:

One of the main reasons why circles may appear jagged in SketchUp is due to a low segment count.

When you create a circle or an arc in SketchUp, it is actually made up of multiple straight line segments. The more segments a circle has, the smoother it will appear.

2. Zoom Level:

The zoom level can also affect how circles are displayed in SketchUp.

When you zoom in too much, the individual line segments become more visible, resulting in a jagged appearance. Adjusting the zoom level can help improve the overall smoothness of circles.


Increasing Segment Count

To achieve smoother circles in SketchUp, you can increase the segment count when creating them:

  • Click on the “Circle” tool from the toolbar or use the keyboard shortcut “C”.
  • Move your cursor to where you want to center your circle and click once.
  • Drag your cursor outward to define the radius of the circle.
  • Before clicking again to complete the circle, type “[number]s” (e.g., “24s” for 24 segments) and hit Enter on your keyboard.

By increasing the segment count, you can achieve smoother circles in SketchUp.

Adjusting Zoom Level

If you are experiencing jagged circles due to zoom level, try adjusting it to improve their appearance:

  • Use the scroll wheel on your mouse or trackpad to zoom in or out.
  • Alternatively, you can use the zoom tools located at the top-right corner of the SketchUp window.
  • Experiment with different zoom levels until you find a balance where circles appear smoother.

Remember that finding the optimal zoom level may vary depending on your specific design and preferences.


In conclusion, circles may appear jagged in SketchUp due to a low segment count or inappropriate zoom levels. By increasing the segment count and adjusting the zoom level, you can achieve smooth and precise circles in your designs. These simple solutions will help enhance the overall quality of your SketchUp models and ensure a more visually appealing result.