Instagram Now Supports 3:4 Posts – Here's What You Need to Do

Instagram has just rolled out a game-changing update – it now officially supports the 3:4 aspect ratio for feed posts. This might seem like a small tweak, but for creators, brands and marketers, it's a big deal.

What’s Changed?

Until recently, Instagram's feed limited image height to 1350 pixels (a 4:5 aspect ratio). That meant many photos had to be cropped or resized – not ideal for mobile photographers and brands wanting full-screen impact.

But as of last week, Instagram now supports 3:4 aspect ratio posts (1080x1440 pixels) the same ratio your phone camera likely uses by default.

Instagram CEO Adam Mosseri announced the update, saying:

Instagram now supports 3:4 aspect ratio photos – the format that almost every phone camera defaults to. When you upload a photo with that ratio, it’ll now appear just exactly as you shot it.
— Instagram CEO Adam Mosseri - on Threads

Why This Update Matters

The 3:4 format takes up more vertical space on screen, giving your content more presence and grabbing user attention. If you're still using the older 4:5 (1080x1350) size, your posts could feel slightly cropped or less dynamic – and that can impact engagement.

Taller posts = better visibility = higher engagement.

What You Should Do

If you manage your own content, now’s the time to:

  • Export your visuals at 1080x1440px

  • Frame content so it works well on both the feed and the grid

  • Stop using outdated dimensions that get less traction

Or…

Let CoGrow Handle It

We’re on top of every change – and this one’s no different. At CoGrow, we’ve already rolled out the 3:4 format across all our clients’ social content.

You don’t need to stress about ratios or updates – we’ve got it covered.

💡 Want to know more about how we create standout content that works with the latest platform features?

👉 Explore our social media services

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