Social media image sizes cluster around four numbers. Feed images on Instagram, Facebook, and Threads are 1080 x 1350 pixels (4:5). Vertical full-screen formats, including Stories and Reels, are 1080 x 1920 pixels (9:16). Link previews are 1200 x 630 pixels. Profile photos range from 165 x 165 pixels on Pinterest to 800 x 800 pixels on YouTube.

Uploading at the wrong size hands the platform a resizing job, and resizing re-encodes the file, which softens text and flattens flat color. This guide gives the 2026 pixel dimensions, aspect ratios, file size limits, and safe zones for eight platforms. Every spec is checked against the platform’s own documentation where one is published.

What Are Social Media Image Sizes?

Social media image sizes are the width-by-height pixel dimensions a platform expects for a specific image placement. Every platform defines separate sizes for profile photos, cover or header images, feed posts, Stories, and thumbnails. Matching the expected dimensions leaves the platform nothing to resize, which is what preserves sharpness.

Platforms enforce those dimensions through three mechanisms:

Each of those mechanisms re-encodes the file, and every re-encode costs quality. Matching the dimensions before uploading is the only way to control how an image looks in the feed.

Social Media Image Sizes at a Glance

The table below is the fast answer: each platform’s primary feed image, its ratio, its profile photo, and its file size ceiling. Per-platform sections further down cover covers, Stories, thumbnails, and safe zones.

Two sizes are effectively universal. Stories and Reels are 1080 x 1920 pixels (9:16) on every platform that offers them. Square feed posts are 1080 x 1080 pixels (1:1) everywhere except Pinterest, which uses 1000 x 1000 pixels.

This guide covers still images only. Frame rates, run times, and codecs live in the companion guide to social media video sizes and specs.

Key Terms: Pixels, Aspect Ratios, Safe Zones, and File Formats

Four technical terms appear throughout every platform’s specification documents.

Pixels (px) are the individual dots that make up a digital image. A 1080 x 1920 image is 1080 dots wide and 1920 dots tall. More pixels carry more detail, but every platform caps file size, so resolution and file weight have to be balanced.

Aspect ratio is the proportional relationship between width and height, written as width:height. A 1080 x 1920 image is 9:16; a 1080 x 1080 image is 1:1. Platforms accept a specific range and crop anything outside it.

Safe zone is the central area that stays visible across every screen size and device crop. Interface elements sit near the edges on Stories and banners, so anything placed outside the safe zone is covered. Instagram and Facebook Stories have a 1080 x 1610 pixel safe area, centered vertically.

File format affects quality and compatibility. JPEG compresses efficiently for photographs. PNG holds sharp edges and flat color, which makes it the right choice for text overlays, charts, and infographics. GIF carries short animations.

Upload Size vs Display Size: Why Size Guides Disagree

Most contradictions between image size guides trace to one confusion. The size you upload and the size the platform displays are different numbers, and guides quote whichever one they found.

Three examples show the pattern clearly:

The rule that resolves all three: upload at the larger published figure and let the platform scale down. Downscaling preserves detail. Upscaling a small file to fill a larger placement never recovers it. When two sources disagree and neither is the platform itself, the larger number is almost always the upload spec.

Why 4:5 Is the Most Versatile Social Media Image Size

The 4:5 aspect ratio (1080 x 1350 pixels) is the closest thing to a universal feed format in 2026. It posts unmodified on Instagram, Facebook, and Threads, which together carry most brands’ organic reach.

The case for designing at 4:5 first:

Four platforms need their own crop. X leads with 16:9 landscape, LinkedIn with 1.91:1 landscape, TikTok with 9:16 vertical, and Pinterest with 2:3.

Every campaign I run starts as a 1080 x 1350 master. Five crops come out of that one file.

One design session covers all eight platforms in this guide.

Instagram Image Sizes

Instagram’s feed accepts images from 1.91:1 landscape to 4:5 portrait, a wider range than most platforms enforce. Every feed image is 1080 pixels wide regardless of orientation.

File limits: JPEG or PNG, up to 8 MB per image. A carousel holds up to 20 images.

Stories safe zone: Keep text and key visuals inside the center 1080 x 1610 pixels. Instagram’s interface covers the top and bottom bands on most devices. Story ads are tighter still, leaving the top 250 pixels and bottom 340 pixels clear.

Feed portrait at 4:5 is Instagram’s highest-performing format because it claims more screen than square or landscape. Reels use the same 1080 x 1920 frame as Stories. Carousels need one consistent ratio across every card, which the walkthrough on building a carousel post covers in detail.

Facebook Image Sizes

Facebook and Instagram share the 1080 x 1350 feed portrait size, so one export posts to both without resizing. Cover photos work differently: desktop and mobile crop them to different shapes, so design to the mobile crop.

File limits: JPEG or PNG, up to 8 MB for organic posts. Keep cover photos under 100 KB so the page renders quickly.

Cover photo design tip: Facebook renders the cover at 851 x 315 on desktop and crops to 640 x 360 on mobile. Only the center column survives both crops, so place logos and text there. Anything in the outer left or right thirds disappears on phones.

X (Twitter) Image Sizes

X accepts landscape, square, and portrait post images. Upload landscape images at 1600 x 900 pixels. X displays them at 1280 x 720. Starting from the larger file gives its encoder more data to work with, which produces a visibly cleaner result.

File limits: JPEG, PNG, or GIF. Photos are capped at 5 MB on mobile and 15 MB on web. GIFs are capped at 15 MB. A post holds up to 4 images.

Size note: Older guides cite 1200 x 675 as the X landscape standard, and some current ones cite 1280 x 720. Both are display or minimum figures. Upload at 1600 x 900 to avoid the visible softening that appears when X downscales a file that was already small.

LinkedIn Image Sizes

LinkedIn is the one major platform whose primary feed format is landscape. Feed posts and link previews both use 1200 x 627 pixels (1.91:1), so wide horizontal images are the default rather than the exception.

File limits: PNG or JPEG. Page images are capped at 3 MB; feed post images at 5 MB. A post holds up to 9 images.

Page cover correction: Most size guides list the LinkedIn Page cover as 1128 x 191 pixels. LinkedIn’s Help Center specifications for Page images state 4200 x 700 pixels, with a 3 MB cap and PNG or JPEG format. The 1128 x 191 figure describes the rendered banner, not the file to upload. Uploading at 1128 x 191 gives LinkedIn a file too small for high-density displays, and the banner looks soft as a result.

The personal profile cover is the one LinkedIn image with no published specification. The 1584 x 396 figure is the working consensus, and it renders correctly, so design to it.

LinkedIn also accepts multi-page PDF documents as native carousel posts, which follow their own page dimensions rather than these image specs. The guide to LinkedIn carousel posts covers that format.

TikTok Image Sizes

TikTok is vertical-first. Video, photo carousels, and cover images all use the 9:16 ratio at 1080 x 1920 pixels. There is no native landscape or square feed format for organic posts.

File limits: JPEG or PNG, up to 20 MB per image in a photo carousel.

Format note: TikTok accepts 4:5, but it is not the size to upload. The full 9:16 frame fills the screen on every device, while 4:5 leaves bars at the top and bottom. TikTok photo carousels sit in the same 9:16 frame as the vertical video formats compared in the guide to short-form video.

Pinterest Image Sizes

Pinterest’s grid favors tall, vertical pins. The standard 2:3 ratio at 1000 x 1500 pixels is the format to design for. Pins taller than 2:3 may be cut off in the feed on some devices.

File limits: JPEG, PNG, or GIF. Pinterest’s product specifications cap files at 20 MB on desktop and 32 MB in the app.

That 32 MB in-app ceiling is the most generous image allowance of any platform in this guide. A full-resolution 1000 x 1500 pin never needs pre-compression before upload.

YouTube Image Sizes

YouTube uses three distinct image placements: the channel icon, the banner, and the video thumbnail. The banner is the complicated one, because it crops differently on TV, desktop, tablet, and mobile.

File limits: Thumbnails are JPG or PNG. YouTube’s custom thumbnail specifications cap them at 2 MB on mobile and 50 MB on desktop. Banners go up to 6 MB, profile photos up to 15 MB.

Thumbnail correction: Nearly every size guide lists YouTube thumbnails as 1280 x 720 pixels with a 2 MB cap. YouTube’s current documentation recommends 3840 x 2160 and allows 50 MB when uploading from desktop. The 1280 x 720 figure is the minimum that still looks acceptable, not the recommendation. Uploading at 3840 x 2160 costs nothing and holds up on large screens.

Banner safe zone: Only the center 1546 x 423 pixels of the 2560 x 1440 banner appears on every device. Put the channel name, logo, and key imagery there. The outer edges show only on connected TVs and wide monitors. Thumbnails are the main click driver on YouTube, and they fit into the wider format planning covered in the guide to social media video.

Threads Image Sizes

Threads uses Instagram’s image specifications, which follows from both running on Meta’s infrastructure. Profile photos, all three feed orientations, and file limits are identical.

File limits: JPEG or PNG, up to 8 MB. A carousel holds up to 20 images.

Threads vs Instagram: Threads publishes no separate Stories or Reels image specification. Every Threads image is a feed post, so the 4:5 export built for Instagram posts to Threads unchanged.

What Causes Image Compression on Social Media?

Image compression happens when a platform re-encodes an uploaded file to cut its size and reduce storage and delivery cost. Every re-encode loses some quality.

Four things trigger it:

Four habits reduce it:

The ceilings differ more than most people expect. Instagram, Facebook, and Threads compress at 8 MB. X compresses photos at 5 MB on mobile. Pinterest allows 32 MB in-app, and YouTube allows 50 MB for desktop thumbnail uploads, so both leave room to post a full-resolution file untouched.

How PostMonk Helps You Post at the Right Image Sizes

Getting one image right for one platform takes seconds. Producing eight correctly sized crops of the same asset, then matching each to the right caption and the right account, is where the time goes. PostMonk is a social media scheduling tool built around that workflow.

The built-in image editor crops, resizes, and annotates images inside the composer. A 1080 x 1350 master becomes a 1600 x 900 crop for X without opening a design tool or re-uploading a file.

Per-platform content overrides, available on Pro and Agency, let you write one base post and then change the caption and image per platform. The 4:5 crop goes out with the Instagram caption. The 1600 x 900 crop goes out with the X copy.

Platform previews show the platform-specific version of each post before it is scheduled. That is where a bad crop or a caption running under an interface element becomes obvious.

PostMonk publishes to nine platforms: Instagram, Facebook, X, LinkedIn, TikTok, Pinterest, YouTube, Threads, and Bluesky. The image editor and platform previews are on every plan. Per-platform overrides start on Pro at $59 once, and Agency is $99 once, both one-time payments rather than subscriptions.

If resizing the same image eight times is a recurring cost in your week, try PostMonk free and run one multi-platform post through the composer.

FAQs

What are social media image sizes?

Social media image sizes are the pixel dimensions each platform expects for a specific placement. Feed images are 1080 x 1350 pixels on Instagram, Facebook, and Threads. Stories and Reels are 1080 x 1920 pixels everywhere.

What is the best image size for all social media platforms?

No single size works everywhere. The 4:5 ratio at 1080 x 1350 pixels is the best starting point, covering Instagram, Facebook, and Threads. Use 1600 x 900 for X, 1200 x 627 for LinkedIn, 1000 x 1500 for Pinterest, and 1080 x 1920 for TikTok, Stories, and Reels.

Is 4:3 or 16:9 better for social media?

Neither is ideal on most platforms. 16:9 is correct for X in-stream images and YouTube thumbnails. 4:3 is not a native format on any major platform and gets cropped. For feed posts, vertical ratios like 4:5 and 9:16 outperform both, because they fill more of a phone screen.

Is 1920 x 1080 good for social media?

It depends on the placement. For YouTube, 1920 x 1080 is a valid 16:9 thumbnail, though YouTube now recommends 3840 x 2160. Facebook event covers are 1920 x 1005, not 1920 x 1080. On Instagram or Facebook feeds, 1920 x 1080 is landscape and gets compressed to 1080 x 566.

What social media uses 1920 x 1080?

YouTube uses 16:9 at 1920 x 1080 or higher for thumbnails and video. Facebook event covers use a near match at 1920 x 1005. No major feed placement uses 1920 x 1080 as its recommended size, because every feed format is now square or vertical.

What is the Instagram image size in 2026?

Instagram feed images come in three sizes. Square is 1080 x 1080 pixels (1:1), portrait is 1080 x 1350 pixels (4:5), and landscape is 1080 x 566 pixels (1.91:1). Stories and Reels are 1080 x 1920 pixels (9:16). Profile photos upload at 320 x 320 pixels.

Is Instagram 4:5 or 3:4?

Instagram’s vertical feed format is 4:5 at 1080 x 1350 pixels, not 3:4. The 3:4 ratio equals 0.75:1, which falls outside Instagram’s accepted 0.8:1 to 1.91:1 range and gets cropped. 4:5 is the tallest ratio Instagram accepts in the feed.

What is a safe zone in social media images?

A safe zone is the center region of an image that always displays without being cropped or covered by interface elements. Instagram and Facebook Stories have a 1080 x 1610 pixel safe area. YouTube banners have a 1546 x 423 pixel safe area visible on every device.

What size should I use for Facebook cover photos?

Upload Facebook cover photos at 851 x 315 pixels. Facebook crops them to 640 x 360 on mobile, so keep logos and text in the center column that survives both crops. Keep the file under 100 KB so the page loads quickly.

Why do my social media images look blurry after uploading?

Blurry uploads are almost always platform compression. Three things trigger it: wrong pixel dimensions, a rejected aspect ratio, or a file over the size limit. Upload at the exact dimensions in this guide, stay under the file cap, and use JPEG at 80% to 90% quality.