How to Make Google Slides Square (Custom Size)

How to Make Google Slides Square

Updated on:

May 5, 2026

By:

Use this interactive demo to learn how to resize Google Slides into a perfect square format.

Quick summary

Making a Google Slides presentation square requires changing the custom page size via Page Setup so that width and height are equal. This is ideal for social media posts, Instagram content, or any square-format display.

Steps

Open your presentation in Google Slides.
In the menu bar, click File, then click Page Setup.
Click the drop-down and set it to Custom.
Enter the same value for width and height to create a square slide.
Click Apply to save the new square dimensions.

📌 Why this matters

Changing the slide dimensions in Google Slides to a square format unlocks better compatibility with social media platforms like Instagram and LinkedIn, where square visuals perform best. The built-in Page Setup tool makes it straightforward to set a custom equal width and height without any third-party software. This feature matters for marketers, educators, and content creators who need presentation slides that fit non-standard display formats. Knowing how to adjust Google Slides page size saves time and ensures your content looks polished across every channel.

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