Social Media Image Sizes: Best Sizes for Posts and Profile (2026)

You spent an hour designing the perfect Instagram carousel. The typography is crisp, the colors are on brand, and the call to action sits exactly where you want it. You hit publish, check your profile grid, and there it is: your headline is chopped in half, and the logo is nowhere to be seen.

This happens to every designer at least once. And in 2025, it started happening a lot more often because Instagram quietly ditched its iconic square grid. The platform now displays posts in a taller 3:4 ratio on profile grids, which means all those perfectly composed 1:1 squares you designed are getting cropped from the sides.

If you're creating social media graphics for the first time (or the hundredth time), this guide gives you the exact image sizes for every major platform in 2026. But more importantly, it explains why these numbers matter and how to avoid the cropping disasters that make your work look unfinished.

Why Correct Social Media Sizes Are Important

This isn't just about aesthetics. Getting your dimensions wrong has real consequences for how your content performs.

Visual quality takes a hit. When you upload an image at the wrong dimensions, platforms stretch, crop, or compress it to fit. The result is pixelation, awkward cropping, or a stretched logo that screams "I didn't check this before posting."

Engagement suffers. Vertical formats like 4:5 or 9:16 dominate mobile screens and can boost engagement by up to 40% compared to square images. That's because taller content takes up more real estate in the feed, which means more time in front of eyeballs before someone scrolls past.

Algorithms notice. Instagram, TikTok, and other platforms have confirmed that low quality or improperly sized content gets deprioritized. If your image looks blurry or crops awkwardly, the algorithm may show it to fewer people.

Brand consistency breaks down. When your profile picture looks crisp on LinkedIn but pixelated on Instagram, it undermines the professional perception you're trying to build.

Quick Primer Before You Start

If you're new to designing for social media, two terms will come up constantly: aspect ratio and pixels.

Aspect ratio describes the proportional relationship between width and height. When you see 1:1, that means equal width and height (a square). When you see 4:5, that means the height is slightly taller than the width (a portrait rectangle). And 9:16 means a tall vertical format that fills a phone screen.

Pixels measure resolution and are written as width × height. An image that's 1080 × 1350 pixels is 1080 pixels wide and 1350 pixels tall.

Here's a quick reference for the most common aspect ratios:

The 1080px width baseline matters because most platforms compress images down to this width anyway. Upload smaller than 1080px and your image will look blurry. Upload at 1080px or higher and you're in the safe zone.

For file formats, use JPG for photographs (smaller file size, good quality) and PNG for graphics, text overlays, and logos (sharper edges, supports transparency).

Social Media Image Sizes Cheat Sheet

Here's a consolidated table for fast reference:

Instagram Image Sizes

Instagram has the most format complexity of any platform, and a major change in 2025 caught a lot of designers off guard.

The tall grid update

In early 2025, Instagram shifted from a 1:1 square grid to a 3:4 grid display on profiles. According to Instagram head Adam Mosseri, this happened because most content shared on the platform is already vertical, so the grid now reflects how people actually post.

What this means in practice: even if you upload an image at 4:5 (which is still the maximum supported ratio for feed posts), your profile grid thumbnail will crop it to 3:4. The sides get trimmed, and anything positioned near the left or right edge may disappear from the grid preview.

The fix is simple but requires a mindset shift. Keep your critical elements (headlines, logos, faces) centered in your designs. The full image still displays when someone taps on it, but the grid preview determines first impressions.

Instagram profile picture size

320 × 320 pixels is the recommended upload size. Instagram displays profile pictures as a circle, so keep your subject or logo centered to avoid awkward cropping at the edges.

Instagram feed post sizes

For feed posts, you have a few options:

Portrait (recommended): 1080 × 1350 px (4:5 aspect ratio). This maximizes your real estate in the feed and works best for engagement.

Newer 3:4 option: 1080 × 1440 px. Instagram added support for this ratio in late 2025, which is useful for photographers who shoot in standard camera aspect ratios.

Square (legacy): 1080 × 1080 px (1:1). Still supported, but it will be cropped on the sides in the new grid view.

Landscape: 1080 × 566 px (1.91:1). Minimal screen presence on mobile. Use sparingly.

If you've been designing square content out of habit, now is the time to switch. The algorithm and the grid both favor vertical.

Instagram Stories and Reels sizes

1080 × 1920 pixels (9:16 aspect ratio) for both Stories and Reels.

The safe zone matters here. The top 250 pixels are covered by your username and platform UI. The bottom 340 pixels are covered by captions, buttons, and engagement icons. Keep your text and logos in the center 70% of the frame to ensure nothing important gets hidden.

Instagram carousel sizes

Carousels follow the same dimensions as feed posts. The recommended size is 1080 × 1350 px (4:5).

One critical quirk: all images in a carousel must share the same aspect ratio, and Instagram uses the first image to determine the ratio for the entire carousel. If your first slide is 4:5 and your second slide is 1:1, the second slide will be cropped to match the first.

Also worth noting: only the first slide appears in your profile grid preview. Design that first slide with the grid thumbnail in mind.

Instagram ads sizes

Feed ads: 1080 × 1080 px or 1080 × 1350 px

Stories and Reels ads: 1080 × 1920 px

Maximum file size: 30 MB

Facebook Image Sizes

Facebook remains the largest social platform with over 3 billion monthly active users, so getting your dimensions right here still matters for reach.

Facebook profile picture size

Upload at 320 × 320 pixels minimum. Facebook displays profile pictures at around 196 × 196 px on desktop and 128 × 128 px on mobile, but uploading at the higher resolution keeps things crisp across devices.

Profile pictures are cropped to a circle, so center your subject.

Facebook cover photo size

The recommended cover photo size is 851 × 315 pixels. On desktop, it displays at 820 × 312 px. On mobile, it crops to 640 × 360 px.

Keep important elements away from the left side of the cover photo because your profile picture overlaps that area on both profiles and Pages.

For other cover formats:

Group cover: 1640 × 856 px

Event cover: 1920 × 1005 px

Facebook feed post sizes

Portrait (recommended): 1080 × 1350 px (4:5)

Square: 1080 × 1080 px (1:1)

Landscape (link previews): 1200 × 630 px (1.91:1)

Facebook Stories and Reels

1080 × 1920 pixels (9:16 aspect ratio) for both formats.

One important change: since June 2025, Facebook merged all video formats into Reels. There's no longer a separate "video post" option. If you upload a video to Facebook, it becomes a Reel.

Facebook ads sizes

Feed and Marketplace ads: 1080 × 1080 px

Link ads: 1200 × 628 px

Stories ads: 1080 × 1920 px

Maximum file size: 30 MB

X (Twitter) Image Sizes

Visual posts on X consistently outperform text only posts, so proper sizing helps your content display correctly across both desktop and mobile.

X profile picture size

400 × 400 pixels is the recommended size. Profile pictures display as a circle for most accounts. Verified Organizations (gold checkmark) display square profile pictures.

X header/banner size

1500 × 500 pixels is the recommended header size.

Note that animated GIFs are not supported in headers. Use static JPG or PNG files.

X feed post image sizes

Landscape: 1600 × 900 px (16:9) or 1280 × 720 px

Square: 1080 × 1080 px (1:1)

Vertical: 1080 × 1350 px (4:5)

X displays images at 2:1 and 3:4 aspect ratios in full within the timeline without forced cropping.

X Cards (link previews)

When you share a link, X pulls an image from the page's meta tags. The recommended image size for X Cards is 1200 × 630 pixels (1.91:1 aspect ratio).

LinkedIn Image Sizes

LinkedIn is a professional context where low quality visuals can undermine your credibility. Document posts (carousels uploaded as PDFs) have also emerged as a high performing format worth understanding.

LinkedIn profile picture size

400 × 400 pixels minimum. Personal profiles display the image as a circle. Company Page logos display as squares.

LinkedIn cover photo sizes

Personal profile: 1584 × 396 px (4:1 aspect ratio). Keep important elements in the center because the left portion gets partially covered by your profile photo on desktop.

Company page: 1128 × 191 px

LinkedIn feed post sizes

Square: 1200 × 1200 px (fills maximum feed width on both desktop and mobile)

Portrait: 1080 × 1350 px (4:5)

Landscape (link previews): 1200 × 627 px (1.91:1)

LinkedIn document posts (carousels)

Document posts are uploaded as PDFs and display at approximately 1080 × 1080 pixels per page.

These have become a standout format on LinkedIn. The swipe mechanic increases dwell time, and the algorithm interprets longer engagement as a signal of quality content. If you're not experimenting with document posts, you're missing one of LinkedIn's most effective organic formats.

TikTok Image Sizes

TikTok is video first, but photo carousels (supporting up to 35 images per post) are gaining traction as a content format.

TikTok profile picture size

The minimum upload size is just 20 × 20 pixels, but that's far too small for quality. Upload at 200 × 200 pixels minimum, or ideally 400 × 400 pixels for future proofing.

TikTok video and photo post sizes

Vertical (standard): 1080 × 1920 px (9:16). This fills the full screen.

Photo carousels: 1080 × 1920 px per image

Square images technically display on TikTok, but the platform adds blurred bars above and below to fill the screen. This reduces perceived quality and screen presence. Stick with vertical whenever possible.

Photo carousels are worth paying attention to. Data from Fanpage Karma shows that photo carousels on TikTok achieve 81% higher engagement than video posts, with 82% more likes. If you're a designer or photographer, this format is an underused opportunity.

YouTube Image Sizes

Your YouTube channel branding (profile picture, banner, and thumbnails) affects discoverability and first impressions.

YouTube profile picture size

800 × 800 pixels is recommended. YouTube displays it at 98 × 98 px, but the higher resolution file ensures quality across different viewing contexts.

YouTube banner size

2560 × 1440 pixels (16:9 aspect ratio) is the recommended size.

YouTube banners display differently on desktop, mobile, and TV. The safe zone for text and logos is 1546 × 423 pixels in the center of the banner. Anything outside this area may be cropped depending on the device.

Maximum file size is 6 MB.

YouTube video thumbnail size

1280 × 720 pixels (16:9 aspect ratio). Maximum file size is 2 MB.

Thumbnails are one of the most important visual assets on YouTube. They determine whether someone clicks on your video in search results and recommendations. High contrast, readable text, and expressive faces tend to perform well.

YouTube Shorts

1080 × 1920 pixels (9:16 aspect ratio), same as TikTok and Instagram Reels.

Pinterest Image Sizes

Pinterest functions as a visual search engine as much as a social platform. Image proportions directly affect how your content gets discovered and distributed.

Pinterest profile picture size

165 × 165 pixels is the minimum. For better quality, upload at 400 × 400 pixels.

Pinterest Pin sizes

Standard Pin: 1000 × 1500 px (2:3 aspect ratio). This is the recommended format and the one Pinterest's algorithm favors.

Idea Pins: 1080 × 1920 px (9:16)

The 2:3 ratio is non negotiable for strong Pinterest performance. Research shows that vertical pins in 2:3 aspect ratio generate 67% more engagement than square format pins.

Pinterest also actively limits distribution for overly tall pins (longer than 1500 px in height) and low resolution images. Stick to the recommended dimensions.