Instagram Vertical Dimensions: The Complete Size Guide

Instagram vertical dimensions vary by format. A vertical feed post is 1080 x 1350px (4:5), while Stories and Reels are 1080 x 1920px (9:16). Getting these right prevents cropping, blurry edges, and misaligned grid previews.

All Instagram Vertical Formats at a Glance

Format	Dimensions (px)	Aspect Ratio
Vertical Feed Post	1080 x 1350	4:5
Instagram Story	1080 x 1920	9:16
Instagram Reel	1080 x 1920	9:16
Reels Cover Photo	1080 x 1920	9:16
Story Ad	1080 x 1920	9:16
Vertical Feed Ad	1080 x 1350	4:5

Aspect Ratio and Pixels — What They Actually Mean

Before the formats, a quick grounding in the two terms you'll keep seeing.Aspect ratio describes the shape of your image — specifically the relationship between its width and height. A 4:5 ratio means the image is four units wide and five units tall. A 9:16 ratio is taller still — think of a phone screen held upright.

Neither number tells you how sharp the image is. That's where pixels come in.Pixels are the individual dots that make up a digital image. More pixels generally means sharper detail. Instagram's recommended pixel dimensions — 1080px wide as the standard — give you a baseline that the platform can display cleanly without compression artefacts.

In practice, uploading below the recommended pixel count doesn't always look obviously bad on a small phone screen. But on larger displays or when zoomed in, under-sized images can look noticeably soft. Creators who resize content from other platforms commonly report this as the first quality issue they notice.

According to TechCrunch, Instagram's growth in recent years has been driven primarily by Reels and DMs — reinforcing why the platform continues to prioritise vertical, full-screen formats above all else.

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Instagram Vertical Feed Post Dimensions

This is the format most people mean when they search for Instagram vertical dimensions.

Recommended Size: 1080 x 1350px at 4:5

The 4:5 aspect ratio is the tallest image Instagram allows in the main feed. It takes up more vertical screen space than a square post, which means someone scrolling has to travel further past it. That's a straightforward advantage in a feed environment.

Instagram recognises 4:5 as the preferred feed format for photos. What's often overlooked is that this preference isn't just a design opinion — it reflects how much screen real estate the post occupies relative to the content around it.

How Vertical Feed Posts Appear on the Profile Grid

Here's where things get a bit counterintuitive. Your feed post is 4:5, but your profile grid previews everything at a 3:4 ratio. So when someone visits your profile, your vertical post will be slightly cropped at the top and bottom in the thumbnail.

As reported by The Verge, Instagram head Adam Mosseri confirmed this grid shift from squares to rectangles, noting that the majority of uploaded content is now vertical in orientation.The fix is simple: keep the most important part of your image — faces, text, product — centred within the frame. Anything placed close to the top or bottom edge risks being cut off in the grid view, even if it looks fine in the feed.

What Happens If You Upload a 9:16 Image to the Feed

This comes up more than you'd expect, particularly for people repurposing Reel or Story content as a feed post. Instagram does not allow 9:16 in the feed. The platform enforces a maximum vertical ratio of 4:5. If you try to upload a taller image, Instagram automatically crops it to 4:5 before posting.

The range Instagram accepts for feed posts runs from 1.91:1 (landscape) at the widest, to 4:5 (portrait) at the tallest. Anything outside that range gets cropped.

File Formats and Size Limits

For images: PNG, JPG, BMP, and non-animated GIF files are supported. For videos posted as feed posts: MP4 and MOV. Instagram recommends keeping image files under 8MB, though in practice most standard-resolution JPGs at 1080px fall well beneath that threshold.

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Instagram Stories Dimensions

Recommended Size: 1080 x 1920px at 9:16

Stories are built for the full phone screen — portrait orientation, edge to edge. The 9:16 aspect ratio matches the natural proportions of most modern smartphones held vertically, which is why content designed at these dimensions feels native rather than fitted.

Safe Zone: Where Not to Place Important Content

This is one of the most practically useful things to understand about Stories, and it's consistently underemphasised.Instagram overlays UI elements — your profile name and icon at the top, interactive buttons and swipe-up areas at the bottom — directly on top of your story content.

Roughly 250 pixels at the top and 250 pixels at the bottom of a 1920px-tall story are routinely obscured by these elements.Place text, logos, CTAs, or any critical visual information in the middle portion of the frame. Content placed near the edges will either be hidden or compete visually with Instagram's own interface.

Uploading Non-Vertical Images to Stories

You can upload square or landscape images to Stories. Instagram doesn't reject them. What it does instead is fit the image within the vertical canvas, leaving empty space above and below.

That space gets filled with a blurred version of the image as a background — Instagram's default behaviour. Some creators use this as a design choice; others fill the space manually with stickers, text, or colour blocks.

Story Highlights Thumbnails

Highlights sit permanently on your profile below your bio. The thumbnail is circular and pulled from the story content. Upload at the same 1080 x 1920px dimensions, and keep any image you intend to use as a highlight cover centred — the circular crop cuts off the sides.

Instagram Reels Dimensions

Recommended Size: 1080 x 1920px at 9:16

Reels use the same dimensions as Stories. The full 9:16 frame is what viewers see when they tap into the Reels tab or come across a Reel in the Explore feed. It fills the screen.

How Reels Appear Across Different Surfaces

This is where it gets layered, and it matters if you're designing Reel covers or thumbnails:

• Reels tab (full screen): 9:16 — full vertical frame visible
• Profile grid (alongside photos): 3:4 — the top and bottom of the Reel are cropped
• Feed preview: 4:5 — a slightly tighter crop than the full frame

In practice, this means a Reel designed with text or key visuals near the top or bottom edge may look fine in the Reels tab but have that content cropped on the profile grid. The safest approach is to treat the centre 4:5 portion of your 9:16 frame as the "safe zone" for anything critical.

Reels Cover Photo

You can set a cover photo either by selecting a frame from the video itself or by uploading a separate image. Either way, the recommended size is 1080 x 1920px. The cover photo is what appears on your profile grid — cropped to 3:4 — and under the Reels tab at the full 9:16 ratio.

One underused feature: you can update a Reel's cover photo after it's been posted. If an older Reel has a thumbnail that doesn't fit your current grid aesthetic, you can go back and change it without re-uploading the video.

Vertical Dimensions for Instagram Carousels

Carousels support the same vertical format as single feed posts — 1080 x 1350px at 4:5 for portrait orientation.

How the First Image Controls the Whole Carousel

Instagram takes its formatting cue from the first image in your carousel. If the first image is 4:5 portrait, Instagram applies that ratio to the entire set. Images that don't match get cropped to fit.

You do have the option to allow mixed orientations within a carousel, but this comes with a trade-off: Instagram adds padding (empty space) above and below landscape and square images to maintain consistency, which can look unintentional if you haven't planned for it.

Carousel Video Uploads

When a carousel includes video — regardless of what your first image's ratio is — Instagram defaults the entire carousel to portrait dimensions. This is easy to miss when mixing photos and videos in the same post.

What's often overlooked is that Instagram's auto-crop in carousels is applied before you post and cannot be adjusted afterward. If you want control over how each image is cropped, do it manually before uploading.

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Instagram Vertical Ad Dimensions

Organic post dimensions and ad dimensions follow the same numbers in most cases, but there are a few distinctions worth noting.

Story Ads: 1080 x 1920px (9:16)

Story ads fill the full screen, same as organic Stories. The safe zone guidance applies equally here — keep important content, including any CTA text or logo, away from the top and bottom 250px.

Vertical Feed Ads: 1080 x 1350px (4:5)

Vertical feed ads match the standard portrait feed post dimensions. One practical difference: ads created specifically for a campaign don't appear on your profile grid the way organic posts do, so the 3:4 grid crop consideration is less relevant for ad-only content.

For detailed file size limits and video specs specific to ad placements, Meta's Ads Guide is the authoritative source — ad requirements are updated more frequently than organic specs.

Practical Considerations When Working With Vertical Formats

A few things that regularly catch people out:Centre your subject. Whether it's a feed post, Reel cover, or Story, the safe centre of the frame is the only area guaranteed to be visible across every surface Instagram displays your content on.

Crop before uploading to carousels. Instagram's auto-crop won't always do what you'd want. If you're uploading a set of vertical images as a carousel, pre-crop each one to 4:5 yourself. It takes a couple of minutes and removes the risk of important content being cut.

Check your profile grid preview before posting. Several scheduling tools allow you to preview how a new post will sit alongside existing ones on your grid. Teams who manage brand accounts commonly report that grid preview checks prevent aesthetic inconsistencies that are inconvenient to fix after posting.

Use the same 1080px width across all formats. Whether you're creating a feed post, Story, or Reel, 1080px is the standard width. The height changes depending on the aspect ratio — 1350px for 4:5, 1920px for 9:16.

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Conclusion

For Instagram vertical dimensions: feed posts are 1080 x 1350px (4:5), Stories and Reels are 1080 x 1920px (9:16). The 3:4 grid preview crops both — keep critical content centred. Carousels and ads follow the same ratios with minor behavioural differences.

Frequently Asked Questions

What is the best vertical size for an Instagram post?

For a feed post, 1080 x 1350px at a 4:5 aspect ratio. For Stories and Reels, 1080 x 1920px at 9:16. The right size depends on where the content appears.

What is the difference between 4:5 and 9:16 on Instagram?

4:5 is the maximum vertical ratio allowed in the feed. 9:16 is used for Stories and Reels — it's taller and fills the full phone screen. You cannot post a 9:16 image directly to the feed.

What happens if I upload a 9:16 image as a feed post?

Instagram crops it to 4:5 automatically. You don't get to control where the crop falls unless you pre-crop the image yourself before uploading.

Why does my vertical post look cropped on my profile grid?

The profile grid previews all posts at a 3:4 ratio, regardless of the original dimensions. A 4:5 post will be slightly cropped at the top and bottom in the thumbnail view.

What is the safe zone for Instagram Stories and Reels?

Avoid placing important content within roughly 250px of the top and bottom of the frame. Instagram's UI elements — profile info at the top, action buttons at the bottom — overlay that area.