Instagram NEW Sizes for 2026
3:4 Is the New Default for Visibility in the Feed.
Instagram has been prioritising vertical content for a while now, and the new update for 2026 will ensure maximum visibility for your posts, if you change your dimensions from now on. Read the Very Social Guide to the new sizes here and apply the new dimensions to all of your future Instagram content.
Instagram now supports 3:4 feed posts (1080 x 1440 px). This makes it the most effective format for static posts and carousels, and the one that best matches how the feed and grid now behave.
In simple terms, 3:4 gives your content more breathing room. It also takes up more screen space in the feed, feels easier to read on mobile, and reduces the chances of important details being cropped. It also plays nicely with the profile grid, which is no longer built around compact formats, such as the original square.
If you want Instagram posts that look current, intentional, and optimised for visibility in 2026, 3:4 is the format to design in from now on.
This guide breaks down the Instagram image sizes that actually matter this year, with a clear focus on using the 3:4 ratio strategically so you can design smarter and post with confidence.
Key Instagram Size Takeaways for 2026:
Recommended feed format:Â 3:4 (1080 x 1440 px)
New – Landscape: 1080 x 608 px. Landscape formats are best reserved for panoramic or cinematic visuals. Because they take up less vertical space, they tend to attract less engagement. Use them when the content genuinely needs width, not by default. Landscape posts still show correctly in the grid and in feed browsing, but they will never occupy as much vertical real estate as 3:4 or even 4:5 posts.
The Instagram post sizes below are still supported, but using the new 3:4 sizing will ultimately optimise your results.
4:5 (1080 x 1350 px)
1:1 (1080 x 1080 px)
1.91:1 (1080 x 566 px)
The Bottom Line
Instagram has moved on, and your dimensions should too.
Especially if you’re a business owner. The new 3:4 post size for 2026 gives you just a bit more space to fit all of your important business information in, so visually it’s a great move for you.
In 2026:
3:4 is the default for feed posts.
Other formats are supported, but secondary.
Vertical thinking wins.
Design for the scroll, not the grid, and use the space Instagram now gives you.
Are you feeling clearer about Instagram sizing now?
If you’re a small business owner creating your own content, this one change can make your posts feel calmer, clearer, and more professional straight away.
Need help applying this across your Instagram, website, or wider digital presence? That’s exactly what we do at Very Social.
At Very Social we help busy humans who are feeling overwhelmed by their business digital presence, content, or the sheer logistics of an event, if that sounds like you – you’ve found your partner.
No overwhelm. No pressure. Just clarity.
Explore our social media, digital and events support Follow @very__social for more calm, practical guidance
