Sprout Social Updates Guide to Social Media Image Sizes
Sprout Social recommends a square 1080 x 1080 pixel image for standard feed posts across several major platforms.
Marketers looking for a single image size to use across several social feeds can start with 1080 x 1080 pixels, according to Sprout Social’s updated image-size guide. The square format, with a 1:1 aspect ratio, is presented as a standard feed option for Instagram, Facebook, LinkedIn, Bluesky and Threads that avoids automatic cropping.
The guide, last updated November 2, 2026, addresses a challenge for social teams: each platform sets its own specifications for images. Those specifications cover pixel dimensions, aspect ratios and file limits, and they can differ across profile pictures, cover images and posts. A size that works for a standard feed post should not be assumed to fit every placement.
Incorrect dimensions can affect both the appearance of a post and whether it is accepted. Platforms may crop an image, cutting off text or parts of a logo, or compress it in ways that soften fine details. An unsuitable aspect ratio can also leave empty space around a visual, while some uploads may be rejected altogether.
Publishing workflows add another consideration. Sprout Social says scheduling tools use platform APIs, which can impose tighter restrictions than the platforms’ own apps. For example, Instagram’s API accepts feed images only within an aspect-ratio range of 4:5 to 1.91:1. Teams using scheduling software therefore need to account for those limits as well as the way an image will appear in the feed.
Static images remain a substantial part of brand publishing on Facebook. Sprout Social cites its 2025 Content Benchmarks Report, which found that images made up 48% of brand content on the platform. The company also points readers to Landscape, its free resizing tool, which can adapt one image for multiple social media sizes at once.
What this means for marketers
Use the square format as a starting point for standard feed posts across the platforms identified in the guide, then check the requirements for other placements and scheduling tools. Keep important text and logos away from edges where cropping could remove them, and review the final image before publishing.
This is an original summary published for informational purposes; all rights to the underlying reporting belong to the source.
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