Complete Guide to Instagram Dimensions
Introduction
Instagram has changed significantly over the years, and the way businesses and creators design their posts has changed with it.
For a long time, the classic 1080 × 1080 px square format was the standard for Instagram posts. Today, Instagram supports taller vertical formats, giving brands more space to capture attention while users scroll through their feeds.
One of the most important updates is the introduction of the 3:4 vertical post format, which uses 1080 × 1440 pixels and matches the taller profile-grid preview used by Instagram.
The traditional 4:5 portrait format at 1080 × 1350 pixels remains widely supported and continues to be a strong choice for Instagram feed posts.
Understanding the latest Instagram post sizes is important for businesses, marketers, designers, and content creators who want their visuals to look sharp and avoid unwanted cropping.
In this guide, we will explain the new Instagram post size, the different Instagram dimensions available in 2026, and how to design content that looks good both in the feed and on your profile.
What Is the New Instagram Post Size?
The newest important Instagram feed format is the 3:4 vertical format.
The recommended dimensions are:
1080 × 1440 pixels
Aspect ratio: 3:4
This format is particularly useful because Instagram's profile grid now displays content using a taller 3:4 preview instead of the traditional square preview.
Using 1080 × 1440 pixels allows the post to match the current grid preview more naturally, reducing the risk of important elements being cropped in the profile view.
However, the 1080 × 1350 px 4:5 format remains an excellent option for feed content and is still widely recommended for maximizing vertical screen space.
Instagram Post Sizes in 2026
Instagram currently supports several image formats.
١. New Tall Portrait Post
1080 × 1440 px
3:4 aspect ratio
This is the newer tall format and matches the current 3:4 profile-grid preview.
It is a strong choice when you want your post to appear naturally within the updated Instagram grid.
٢. Portrait Post
1080 × 1350 px
4:5 aspect ratio
The 4:5 format remains one of the most popular Instagram feed sizes because it takes up significant vertical space while scrolling.
٣. Square Post
1080 × 1080 px
1:1 aspect ratio
The classic square format is still supported.
It can work well for product photography, simple graphics, announcements, and designs that require a balanced composition.
٤. Landscape Post
1080 × 566 px
1.91:1 aspect ratio
Landscape images are also supported, but they occupy less vertical space in the Instagram feed compared with portrait formats.
Which Instagram Post Size Should You Use?
The best size depends on your content strategy.
For a post designed specifically around the new Instagram grid, 1080 × 1440 px at 3:4 is a strong choice.
For maximum vertical presence in the feed, 1080 × 1350 px at 4:5 remains a highly practical option.
For simple graphics or content that needs to be reused across multiple platforms, 1080 × 1080 px can still be useful.
For wide photography, landscapes, or certain branded visuals, 1080 × 566 px can be appropriate.
The key is to design according to the placement instead of forcing every piece of content into the same dimensions.
Why Did Instagram Move to a Taller Grid?
Instagram originally became famous for its square photo format.
However, mobile content consumption has increasingly shifted toward vertical visuals because vertical posts occupy more screen space.
Instagram's newer 3:4 profile-grid preview reflects this change. Instead of forcing every post into a square preview, the profile now gives vertical content more room.
For creators and businesses, this means visual design needs to consider both:
The feed appearance
The profile-grid appearance
A post that looks perfect when opened may still lose important elements when displayed as a grid preview if the composition is not planned correctly.
How to Design for the New Instagram 3:4 Format
When creating a 1080 × 1440 px Instagram post, keep important information toward the center.
This includes:
Brand logos
Headlines
Product names
Faces
Prices
Calls to action
Important visual details
Avoid placing critical information too close to the top or bottom edges.
This is especially important when your content may also be viewed in different previews or reused across Instagram placements.
New Instagram Size for Businesses
The new Instagram dimensions are particularly useful for businesses.
A taller image provides more space for:
Product presentations
Marketing messages
Promotional offers
Educational graphics
Brand storytelling
Product photography
For ecommerce brands, the 3:4 format can be especially useful for showcasing products because the additional vertical space allows the product to appear larger and more prominent.
A business can create a product-focused composition with the product in the center, supporting information around it, and a clear call to action.
Instagram Carousel Post Size
Carousel posts require special attention because the slides should use a consistent aspect ratio.
A carousel can use portrait formats such as 1080 × 1350 px or 1080 × 1440 px.
The safest approach is to use the same dimensions for every slide so Instagram does not unexpectedly crop individual images.
For example, a brand could create a complete educational carousel using:
1080 × 1440 px
3:4 ratio
Consistent margins
Centered headlines
Consistent branding
This creates a cleaner and more professional carousel experience.
Instagram Stories and Reels Size
The new 3:4 format applies to feed images, but Instagram Stories and Reels continue to use a different vertical format.
The standard size is:
1080 × 1920 px
9:16 aspect ratio
This format fills the entire smartphone screen and is designed for full-screen vertical video and Stories.
When creating Stories or Reels, keep important text and logos away from areas where Instagram's interface elements may appear.
Instagram Profile Picture Size
Instagram profile pictures use a square source image.
The commonly recommended upload size is:
320 × 320 px
1:1 aspect ratio
Instagram displays the profile picture as a circle, so important visual elements should remain centered.
New Instagram Post Size for AI Image Generation
The new Instagram dimensions are also important when generating images with artificial intelligence.
If you are creating an AI-generated Instagram post, specify the desired dimensions directly in your image-generation prompt.
For example:
1080 × 1440 px, 3:4 vertical Instagram feed post
This helps ensure that the composition is designed for the correct format from the beginning.
For AI-generated marketing images, also instruct the image model to keep important subjects, text areas, products, and branding elements within the central composition.
How AI Can Help Create Instagram Posts
AI can make the process of creating Instagram content significantly faster.
Businesses can use AI to generate:
Post concepts
Marketing visuals
Product images
Captions
Content ideas
Carousel concepts
Advertising creatives
Brand storytelling visuals
After creating the visual, businesses can use automation platforms such as SyncSpark to organize their content, schedule posts, and manage their social media publishing workflow.
Common Instagram Size Mistakes
١. Designing Only for the Old Square Grid
The traditional square format is still supported, but Instagram's profile grid is now taller.
Designing everything around 1:1 can result in less effective use of the available vertical space.
٢. Placing Text Too Close to the Edges
Important text can become vulnerable to cropping in previews.
Keep key information toward the center.
٣. Mixing Sizes in a Carousel
Using different dimensions across carousel slides can create inconsistent cropping.
Keep all slides at the same ratio.
٤. Using One Size for Every Instagram Placement
Feed posts, Stories, and Reels have different dimensions.
Create content specifically for each placement whenever possible.
٥. Ignoring Mobile Viewing
Instagram is primarily a mobile-first platform.
Always check how your design looks on a smartphone before publishing.
The Future of Instagram Content Design
Instagram's move toward taller content reflects a broader shift in social media toward vertical, mobile-first visual communication.
Brands will increasingly need to design content that works across:
Feed posts
Profile grids
Stories
Reels
Carousels
Advertising placements
AI-powered design tools will make it easier to generate these variations while maintaining consistent branding.
With platforms such as SyncSpark, businesses can combine AI content creation with scheduling and social media automation to build a more efficient publishing system.
How SyncSpark Can Help With Instagram Content
Creating the right Instagram dimensions is only the first step.
Businesses also need to create content consistently, organize campaigns, write captions, schedule posts, and publish across social media channels.
With SyncSpark, businesses can simplify these repetitive content-management tasks while maintaining a consistent publishing workflow.
This allows marketing teams to spend more time on creative strategy and audience engagement instead of manually managing every post.
Final Thoughts
The new Instagram post size gives businesses and creators more flexibility when designing vertical content.
The most important formats to remember are:
1080 × 1440 px — 3:4 vertical
1080 × 1350 px — 4:5 portrait
1080 × 1080 px — 1:1 square
1080 × 566 px — 1.91:1 landscape
For Stories and Reels, use 1080 × 1920 px at 9:16.
For content designed around Instagram's newer profile-grid presentation, 3:4 at 1080 × 1440 px is an important format to consider, while 4:5 remains a strong feed option.
By combining the correct dimensions with strong visual design and AI-powered content workflows, businesses can create Instagram content that looks professional, consistent, and optimized for modern mobile audiences.