How to Change the Size of Google Slides: Understanding Google Slides Dimensions

Google Slides is an essential tool for crafting impressive presentations. Whether you’re delivering your masterpiece on a projector, sharing it on a tablet, or embedding a slideshow into a blog post, knowing how to change the size of your slides in Google Slides is a pivotal skill. This comprehensive Google Slides tutorial will guide you through the process of modifying slide dimensions.

How to Change Slide Size in Google Slides

Whether you’re using premade templates, an existing presentation or starting from scratch, the first step in altering the slide size is to launch your presentation in your preferred browser.

Step 1: Open the File Menu

Once your presentation is up and running, navigate to the “File” tab at the top left corner of your browser window.

Google Slides > File Menu

Step 2: Click Page Setup at the bottom

From the drop-down menu, scroll to the bottom to find and select “Page setup”

Google Slides > File Menu > Page Setup

Step 3: Choose a Pre-Made or Custom Aspect Ratio

After clicking “Page setup,” a dialog box will appear with a list of options for slide size. The standard slide size in Google Slides is set to ‘Widescreen 16:9’, but you can choose from ‘Standard 4:3’, ‘Widescreen 16:9’, or ‘Custom’ by clicking on the down arrow next to the current slide size.

Google Slides also offers the flexibility to set a different size by entering your own measurements for a custom slide. These units of measurement can be in inches, centimeters, points, or pixels. This flexibility is particularly handy if you need a smaller size for your presentation.

Google Slides > Page Setup box
Google Slides > Page Setup > Aspect Ratio

Section 2: Popular Aspect Ratios for Google Slides

Just like in Google Docs, the aspect ratios in Google Slides play a significant role in determining how your slides will appear on various devices, from projectors to mobile devices. Here are the most commonly used aspect ratios:

Standard (4:3):

This traditional format is versatile and works well with most screens, making it great for business or educational presentations. It provides ample vertical space, perfect for text-heavy slides or when using the Google Slides app on mobile devices. This default ratio is also the dimension of modern-day tablets such as iPad Airs and iPad Pros.

Widescreen (16:10):

This format is fast becoming the standard for new laptop screens, and it’s also the aspect ratio of the new Macbooks, Thinkpads, Zenbooks, among others.

Widescreen (16:9):

This widescreen format is an excellent all-rounder supported by most modern-day computer monitors. This aspect ratio has been a staple for HD TVs and video production since the 1980s.

Custom size:

If the standard options don’t meet your needs, you can easily set a custom size that suits your presentation style. Adjusting the width and height gives you the flexibility to create unique presentations or even infographics.


Mastering the skill of changing the slide size in Google Slides is simple yet crucial. By understanding the relationship between aspect ratios and screen size, you’ll be well-equipped to design compelling slideshows for various devices. So why wait? Start creating your standout presentation with Google Slides today!

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