If you're trying to get more eyes on your Instagram posts, it’s high time you paid attention to the new post sizes. Instagram’s recent updates have changed the game, and knowing the right dimensions can make a huge difference in how your content looks and performs. Whether you're posting a carousel, a Reel, or a regular feed post, getting the sizing right helps you avoid blurry images or awkward crops. Let’s break it all down so you can keep your feed looking sharp and professional.

Instagram used to be all about the square format, but now things have gotten a bit more vertical. With the new preview grid looking taller and more modern, you might think you have more room to play with. But here's the catch — even though the layout seems to stretch out more, the platform still limits what you can upload. So it's not just about how your post looks on the grid, it's about making sure what you upload actually fits without getting cut off or looking fuzzy.

You might be wondering if all these changes really matter. The short answer? Yes, they do. If your images or videos don’t match the recommended sizes, your content could look unpolished or worse — get automatically cropped in a way that cuts off the good parts. That’s definitely not how you want to impress your followers or attract new ones. Let’s dig into what the new Instagram post sizes are and how you can use them to your advantage.

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Table of Contents

• Introduction
• New Instagram Post Sizes for 2025
• Why the New Sizes Matter
• How to Stay Within the Limits
• Using the Right Aspect Ratios
• Content Creation Tips for 2025
• Frequently Asked Questions

New Instagram Post Sizes for 2025

Instagram has updated its post dimensions to keep up with how people scroll and view content. Here's the breakdown of the latest specs:

• Feed Posts: 1080px by 1350px (4:5 aspect ratio)
• Square Posts: 1080px by 1080px (1:1 aspect ratio)
• Stories & Reels: 1080px by 1920px (9:16 aspect ratio)
• Carousel Posts: Same as feed and square posts, depending on the layout

You might be thinking — what’s with all the numbers? Well, it's not just about matching pixels, it’s about how your content is displayed on different devices and how it fits into Instagram’s evolving layout. Even if the preview grid shows a taller look, the actual upload limits are still in place. So, even if you’re using the newer format, you have to stay within those 1080px width and 1350px height boundaries. Otherwise, your image might not look the way you intended.

Why the New Sizes Matter

Instagram’s interface is always shifting to match how users behave. Lately, vertical scrolling has taken over, and Reels are more important than ever. That’s why the platform is pushing for taller, more mobile-friendly formats. But if you're not using the right sizes, your content might not stand out the way it should. Cropped or blurry posts can make your brand look less polished, and that’s not the kind of first impression you want to make.

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Also, keep in mind that the grid preview might look taller, but that doesn’t mean your uploaded content can go beyond the 4:5 ratio. You can design for that taller look, but Instagram will still crop your image if it doesn’t fit within the allowed dimensions. So the trick is to design within those limits while keeping your visuals engaging and eye-catching.

How to Stay Within the Limits

So you’ve got a great image or video, but how do you make sure it doesn’t get messed up when you upload it? The key is to stick to the recommended sizes and ratios. Here’s how to do that:

1. Stick with 4:5 for feed posts: Even though the preview looks taller, your uploaded image can’t go beyond 1080x1350 pixels.
2. Use 1:1 for square posts: This is still a safe bet and looks clean, especially in the grid view.
3. Go with 9:16 for Stories and Reels: This ratio fills the screen on phones and makes your content feel immersive.

You can use editing tools like Canva, Adobe Express, or even your phone’s built-in cropping features to make sure your content fits these dimensions. That way, you’re not guessing when you upload — you know it’ll look just right.

Using the Right Aspect Ratios

Aspect ratios are more than just numbers — they affect how your content is viewed and perceived. The 4:5 ratio gives you a bit more vertical space without going full screen like a Reel. The 1:1 square format is still great for a clean, minimalist look. And if you're making Reels or Stories, the 9:16 ratio is the standard you need to follow to make sure your content looks full screen on mobile devices.

Here’s a quick tip: If you’re creating a vertical post for your feed, aim for 1080x1350 pixels. That gives you a little more space than a square post but still fits within Instagram’s limits. If you want to go full screen like a Reel, you’ll need to create a separate version with the 9:16 dimensions.

Some creators design multiple versions of the same image — one for the feed and another for Reels or Stories. That way, they’re not stretching or squishing content to fit different formats. It might take a bit more time, but it ensures that your content looks professional across all areas of the app.

Content Creation Tips for 2025

Creating content that looks good on Instagram is about more than just following size guidelines. Here are a few extra tips to make sure your posts stand out:

• Use high-quality images: Even if the size is perfect, a low-resolution image will look blurry.
• Leave space for text: If you plan to add captions or callouts, make sure there’s room for them without covering up the main subject.
• Test different formats: Try posting both square and vertical images to see what resonates more with your audience.
• Update your templates: If you use preset designs, double-check the dimensions to ensure they match the new specs.

Also, don’t forget to check how your images look on different devices. What looks great on your computer screen might not pop the same way on a phone. Test your posts by previewing them on your mobile app before going live.

If you're a business or content creator, it’s a good idea to get in the habit of updating your image specs at least once a year. Platforms like Instagram are always evolving, and staying up to date helps you keep your content looking fresh and professional.

Frequently Asked Questions

What is the new Instagram post size for 2025?

The updated size for vertical feed posts is 1080px by 1350px (4:5 aspect ratio). For square posts, it’s still 1080px by 1080px (1:1). Stories and Reels should be 1080px by 1920px (9:16).

Can I upload taller images to Instagram?

Even though the preview looks taller, Instagram limits uploads to a maximum width of 1080px and a height of 1350px. Going beyond that will result in automatic cropping.

Do I need to change all my old posts to the new sizes?

Nope. Older posts will still display as they were uploaded. However, new content should follow the updated sizes to ensure the best display and user experience.