Instagram Vertical Dimensions: The Complete Guide for 2026

If you want your Instagram content to take up the most screen space, grab attention faster, and display perfectly across the feed and profile grid, using the correct Instagram vertical dimensions is essential.

Vertical content is the most powerful format on Instagram — it occupies more of your follower's screen than any other orientation, giving your post more passive view time before someone scrolls past.

This guide covers every Instagram vertical dimension you need in 2026, from portrait feed posts and Stories to Reels, vertical carousels, vertical video, and ads — with exact pixel specs, aspect ratios, file format tips, and the important 2026 grid update that changed how vertical content displays on your profile.

What Are the Instagram Vertical Dimensions?

Instagram supports two primary vertical dimensions for feed posts:

Portrait (4:5): 1080 x 1350 pixels — the long-standing standard vertical format
Tall Portrait (3:4): 1080 x 1440 pixels — introduced as a native upload size in 2025, now the recommended default

Both are vertical orientations that take up significantly more screen space in the feed than square (1:1) or landscape (1.91:1) posts. For Stories and Reels, the vertical dimension is 1080 x 1920 pixels at a 9:16 aspect ratio — the full-screen mobile format.

Here is the complete summary at a glance:

Format	Dimensions	Aspect Ratio
Portrait feed post (standard)	1080 x 1350 px	4:5
Portrait feed post (new — recommended)	1080 x 1440 px	3:4
Instagram Stories	1080 x 1920 px	9:16
Instagram Reels	1080 x 1920 px	9:16
Vertical carousel	1080 x 1350 px or 1080 x 1440 px	4:5 or 3:4
Vertical video (in-feed)	1080 x 1350 px	4:5
Story ad / Reel ad	1080 x 1920 px	9:16

Why Instagram Vertical Dimensions Matter for Your Feed

Vertical posts occupy more of the screen than any other format. In a feed where every post competes for a viewer's attention in a fraction of a second, more screen real estate translates directly into more passive view time — and more view time means more opportunity for a like, save, comment, or follow.

Instagram is one of the most competitive visual platforms in the world. As reported by CNBC, Instagram now has 3 billion monthly active users, making it more important than ever to optimise every element of how your content appears in the feed.

The data supports vertical as the highest-value format. According to Statista, photo posts on Instagram generated the highest follower engagement rate of 2.69% as of February 2024 — and vertical photo posts are specifically the format that maximises feed space for those photo impressions.

A square post leaves white space on either side of the viewer's screen. A landscape post takes up even less vertical space. A vertical post at 4:5 or 3:4 fills the majority of the screen — which is why the Instagram vertical dimensions of 1080 x 1350 px and 1080 x 1440 px are recommended by most social media professionals as the default format for feed content.

The 2026 Instagram Grid Update — What Changed for Vertical Content

In 2025 Instagram made its most significant dimension change in years: the profile grid switched from 1:1 square thumbnails to 3:4 portrait thumbnails. This single update fundamentally changed how every post — including vertical posts — displays on your profile.

What the 2026 Grid Change Means

Before 2025, all profile grid thumbnails were cropped to a square regardless of how the post was originally uploaded. This meant vertical posts at 4:5 were cropped on the grid, cutting off the top and bottom of the image.

After the 2025 update, the grid displays thumbnails at a 3:4 aspect ratio — a taller rectangle that matches the proportions of the vertical format. This means:

4:5 posts (1080 x 1350 px) are still slightly taller than the 3:4 grid crop, so the top and bottom edges may be trimmed in the thumbnail
3:4 posts (1080 x 1440 px) match the grid crop exactly — the full image appears in the thumbnail with no cropping at all
Square (1:1) posts display with grey bars on the sides in the new 3:4 grid
Landscape posts are significantly cropped in the grid thumbnail

Why 1080 x 1440 px is Now the Recommended Default

Because 1080 x 1440 px (3:4) matches the new grid thumbnail format exactly, it is now the most grid-friendly vertical format available. A post uploaded at 1080 x 1440 px displays fully in the feed at its tall vertical ratio and appears completely uncropped in the profile grid thumbnail — making it the best of both worlds.

The 4:5 format (1080 x 1350 px) still works well in the feed and remains a solid choice, but its slightly taller proportions mean the grid thumbnail trims the top and bottom slightly. If precise grid control matters to your brand or aesthetic, 1080 x 1440 px is now the smarter default.

Instagram Vertical Dimensions — Full Specifications Table

Specification	Portrait (4:5)	Tall Portrait (3:4)
Dimensions	1080 x 1350 px	1080 x 1440 px
Aspect ratio	4:5	3:4
Grid thumbnail display	Slightly cropped top/bottom	Full image shown — no crop
Feed display	Full vertical format	Full vertical format
Max file size	8 MB	8 MB
Recommended format	JPG (photos), PNG (graphics)	JPG (photos), PNG (graphics)
Colour profile	sRGB	sRGB
Min accepted size	320 x 400 px	320 x 427 px

Instagram Stories Vertical Dimensions

Instagram Stories use the full-screen vertical format — the most immersive Instagram vertical dimension available.

Safe Zone for Stories

Even at the correct 1080 x 1920 px dimensions, the Instagram UI overlaps parts of your story:

Top 250 pixels: Covered by your profile photo, username, and story timer
Bottom 400 pixels: Covered by the reply bar, link sticker area, and reaction buttons
Left and right edges (80 pixels each): May be cut off on smaller screens

Keep all important text, logos, CTAs, and key visuals within the central safe area — roughly between 250 px from the top and 400 px from the bottom — to ensure nothing is hidden behind the Instagram interface.

Instagram Reels Vertical Dimensions

Reels use the same Instagram vertical dimensions as Stories — 1080 x 1920 pixels at a 9:16 aspect ratio — but serve a completely different content purpose.

Recommended Reels Specifications

Dimensions: 1080 x 1920 pixels
Aspect ratio: 9:16
Maximum length: 90 seconds
Maximum file size: 4 GB
File format: MP4 or MOV
Codec: H.264 recommended
Frame rate: 23–60 fps (30 fps recommended)
Colour profile: sRGB

Reels Cover Photo and Grid Display

Your Reels cover photo appears on your profile grid as a 3:4 thumbnail (following the 2025 grid update). When selecting or uploading a cover, use the full 1080 x 1920 px frame and ensure the key visual element — your face, product, or key text — is centered within the middle portion of the frame so it displays correctly in the 3:4 grid crop.

Reels filmed horizontally (16:9) will play with black bars on the top and bottom in the Reels feed. Always shoot or export Reels in the 9:16 vertical format to fill the full screen natively.

Reels vs Stories: Same Dimensions, Different Strategy

Both Reels and Stories use the same 1080 x 1920 px vertical dimension, but they serve different roles. Stories disappear after 24 hours and are ideal for timely, interactive content.

Reels are permanent, discoverable by non-followers, and optimised for reach and algorithmic distribution. Design content for the same dimensions but with fundamentally different goals for each format.

Instagram Vertical Dimensions for Carousel Posts

How Vertical Carousels Work

Carousel posts allow you to share up to 20 images or videos in a single post. The first slide sets the aspect ratio for all remaining slides — so if your first image is vertical (4:5 or 3:4), all subsequent slides will be displayed in that vertical format.

Recommended vertical carousel dimensions:

Standard portrait carousel: 1080 x 1350 px (4:5)
Tall portrait carousel (recommended): 1080 x 1440 px (3:4)

Because the first slide sets the ratio, plan your carousel sequence carefully and create every slide at the same Instagram vertical dimensions from the start. Do not rely on Instagram's automatic cropping to adjust slides — always crop to the correct ratio before uploading.

Best Practices for Vertical Carousels

Design all slides at identical dimensions to ensure consistent display
Use the first slide as a strong visual hook — it is the only frame visible in the feed before someone swipes and the one shown in the profile grid
Leave a partial visual element at the right edge of early slides to signal there is more content to swipe through
Keep important text and logos away from the very edges — crop risk increases as dimensions get taller

Instagram Vertical Dimensions for Video Posts

In-Feed Vertical Video Specifications

In-feed vertical videos follow the same Instagram vertical dimensions as vertical photo posts:

Portrait video: 1080 x 1350 px (4:5) — maximum supported vertical ratio for in-feed video
Aspect ratio: 4:5
Maximum length: 60 seconds (longer videos must be posted as Reels)
Maximum file size: 4 GB
Recommended format: MP4 with H.264 codec and AAC audio
Frame rate: 30 fps recommended
Bitrate: 3,500 kbps recommended

Note: In-feed video posts are capped at the 4:5 ratio (1080 x 1350 px) — Instagram does not natively support 3:4 or 9:16 for standard feed video. For full-screen 9:16 vertical video, use Reels.

Instagram Vertical Dimensions for Ads

Running vertical paid content on Instagram requires the same technical care as organic posts, but with stricter constraints since dimension errors in ads directly impact ad spend and delivery.

Feed Ad Vertical Dimensions

Portrait feed ad: 1080 x 1350 px (4:5) — recommended for maximum feed coverage
Tall portrait: 1080 x 1440 px (3:4) — also supported, matches new grid
Minimum resolution: 500 x 500 px (always upload at full 1080 px width)

Story Ad Vertical Dimensions

Dimensions: 1080 x 1920 px (9:16)
Maximum video length: 15 seconds
Apply the same safe zone rules as organic stories — keep all text and CTAs within the central safe area

Reels Ad Vertical Dimensions

Dimensions: 1080 x 1920 px (9:16)
Maximum video length: 30 seconds
Format: MP4 or MOV

Vertical vs Square vs Landscape — Which Format Performs Best?

Format	Dimensions	Feed Space	Grid Display (2025)	Best For
Tall Portrait	1080 x 1440 px	Most	Full — no crop	Grid-conscious brands, portraits
Portrait	1080 x 1350 px	Very large	Slight top/bottom trim	Engagement-focused content
Square	1080 x 1080 px	Medium	Grey bars on sides	Versatile content, logos
Landscape	1080 x 566 px	Smallest	Heavily cropped	Wide panoramics only

For most content types — product photography, portraits, branded graphics, educational posts the Instagram vertical dimensions of 1080 x 1440 px or 1080 x 1350 px are the clear winner in 2025.

They take up more screen space than any other feed format, display cleanly on the new 3:4 profile grid, and give your content the maximum possible visibility before a viewer scrolls past.

File Format and Quality Tips for Instagram Vertical Posts

JPG vs PNG for Vertical Posts

Use JPG for photography, portraits, product images, and any content with complex colour gradients. JPG files are smaller, which means less aggressive compression from Instagram's system.
Use PNG for branded graphics, text-heavy designs, illustrations, and images where sharp edges on text or logos matter. PNG preserves clean lines that JPG compression can blur.

How to Minimise Compression on Vertical Posts

Instagram compresses every uploaded image. These steps minimise quality loss on your vertical posts:

Export at exactly 1080 px wide — at either 1350 or 1440 px tall depending on your chosen ratio
Use sRGB colour profile — not Adobe RGB or CMYK, which get converted by Instagram and can shift colours
Export JPG at 70–80% quality — high-quality JPG exports at 95–100% often compress more aggressively than mid-range exports
Keep file size under 5 MB — files close to the 8 MB limit may trigger heavier server-side compression
Upload over Wi-Fi — mobile data connections sometimes apply additional pre-upload compression
Avoid double compression — every re-export cycle degrades image quality cumulatively

How to Resize an Image to Instagram Vertical Dimensions

If you have an existing image that is not vertical, here is how to resize it to the correct Instagram vertical dimensions:

Option 1: Crop to Vertical Ratio (Recommended)

Open your image in a photo editor (Photoshop, Lightroom, Canva, or your phone's editor)
Select the Crop tool and set the ratio to either 4:5 or 3:4 depending on your target format
Reposition the crop frame to keep the key subject centered and fully visible
Apply the crop
Export at 1080 x 1350 px (4:5) or 1080 x 1440 px (3:4)
Save as JPG at 80% quality or PNG depending on content type

Option 2: Add Padding for Non-Vertical Images

If you have a square or landscape image you want to display without cropping, add background padding to fit it within a vertical frame:

Create a new canvas at 1080 x 1350 px or 1080 x 1440 px
Place your original image in the centre
Scale it to fit within the frame without cropping
Fill the surrounding space with a complementary colour, gradient, or branded background
Export at the correct vertical dimensions

This approach preserves the full original image while still posting at the correct Instagram vertical dimensions.

Conclusion

The correct Instagram vertical dimensions in 2026 depend on the format you are posting:

Feed posts: 1080 x 1440 px (3:4) is now the recommended default — it fills the feed and matches the new 3:4 profile grid perfectly
Feed posts (4:5 standard): 1080 x 1350 px remains a strong option for feed performance but is slightly cropped on the new grid
Stories and Reels: 1080 x 1920 px (9:16) for full-screen vertical content

Vertical is unambiguously the most powerful feed format on Instagram — it takes up the most screen space, gets the most passive view time, and now aligns with the platform's updated profile grid.

Starting with the correct Instagram vertical dimensions and pairing them with the right file format and compression approach gives your content the strongest possible foundation on a platform with 3 billion monthly users competing for attention.

Frequently Asked Questions

What are the Instagram vertical dimensions for feed posts?

The recommended Instagram vertical dimensions for feed posts are 1080 x 1440 pixels (3:4) — introduced as a native format in 2025 and the best match for the new profile grid. The previous standard of 1080 x 1350 pixels (4:5) remains fully supported in the feed but is slightly cropped on the 3:4 profile grid.

What changed about Instagram vertical dimensions in 2026?

In 2026, Instagram updated the profile grid from 1:1 square thumbnails to 3:4 portrait thumbnails. This change made 1080 x 1440 px (3:4) the optimal vertical feed format because it matches the grid exactly — displaying the full image in both the feed and the profile grid without any cropping.

What are the Instagram vertical dimensions for Stories?

Instagram Stories use 1080 x 1920 pixels at a 9:16 aspect ratio. This fills the entire mobile screen. Keep important text and visuals at least 250 pixels from the top and 400 pixels from the bottom to avoid the Instagram interface overlapping your content.

Are Instagram Reels the same vertical dimensions as Stories?

Yes. Both Reels and Stories use 1080 x 1920 pixels (9:16). The dimensions are identical but the content strategy differs — Stories disappear after 24 hours and are conversational, while Reels are permanent, discoverable by new audiences, and algorithm-distributed for reach.

What is the maximum file size for vertical Instagram posts?

For vertical photo posts, the maximum file size is 8 MB. For vertical video posts and Reels, the maximum is 4 GB. For best quality results, keep photo files under 5 MB to avoid triggering heavy server-side compression from Instagram.

Does using Instagram vertical dimensions affect engagement?

Yes. Vertical posts at 4:5 or 3:4 occupy significantly more screen space in the feed than square or landscape posts, giving your content more passive view time before a viewer scrolls past. More view time increases the likelihood of a like, save, comment, or follow — making the correct Instagram vertical dimensions a genuine engagement lever, not just a technical detail.