Navigating social media image dimensions in 2026 is an exercise in precision. Each major network enforces distinct viewport rendering engines, algorithmic compression rules, and device-dependent crops. Uploading an image with mismatched dimensions forces automated downsampling or arbitrary center-cropping—often chopping off your headlines, distorting brand colors, or rendering fine typography unreadable.

This cheat sheet provides the exact, verified pixel dimensions, aspect ratios, file size boundaries, and user interface (UI) safe-zone requirements for every major platform.

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1. Why Exact Dimensions Matter More Than Ratio Alone

A common mistake is assuming that as long as the aspect ratio matches, the raw pixel resolution is irrelevant. For instance, creating an Instagram square graphic at 500 × 500 px technically satisfies the 1:1 ratio. However, when Instagram displays this graphic on a modern smartphone display (like an iPhone Retina or Samsung OLED running at 3x device pixel ratio), the app must upscale the image by 216%. The result is a visibly fuzzy, amateurish graphic.

Conversely, uploading an uncompressed 20-megabyte photographic file will trigger severe, lossy server-side compression. The golden rule is to supply the exact native target dimensions at crisp resolution (72 to 150 DPI) in high-efficiency formats (WebP or 92% quality JPG).

2. Instagram Image Dimensions (2026)

Instagram supports three feed orientations in addition to vertical Stories and Reels.

  • Square Feed Post: 1080 × 1080 px (1:1 Ratio). The universal classic format. Safe, dependable, and always aligned with your profile grid.
  • Portrait Feed Post: 1080 × 1350 px (4:5 Ratio). Highly Recommended for Engagement. Takes up 25% more vertical viewport real estate on smartphones than square posts, slowing down user scroll speed.
  • Landscape Feed Post: 1080 × 566 px (1.91:1 Ratio). Rarely recommended because it occupies minimal mobile screen height.
  • Instagram Story & Reel: 1080 × 1920 px (9:16 Ratio). Full-screen vertical format. Maximum file size: 30MB.
  • Instagram Profile Picture: 320 × 320 px (minimum) or 1080 × 1080 px. Remember that Instagram displays avatars within a circular mask.
Crucial Instagram Grid Tip: When designing a 4:5 portrait (1080 × 1350 px), keep your headline and primary subject vertically centered within the middle 1080 × 1080 area. Instagram automatically crops the top and bottom 135px when displaying the post on your profile's square thumbnail grid!

3. YouTube Image Sizes & Safe Areas

YouTube visual assets span thumbnails, multi-device channel banners, and profile logos.

  • YouTube Video Thumbnail: 1280 × 720 px (16:9 Ratio). Minimum width: 640 px. Accepted formats: JPG, PNG, WebP. Strict 2MB file size ceiling.
  • YouTube Channel Banner: 2560 × 1440 px (16:9 Ratio). Max file size: 6MB.
  • YouTube Channel Avatar: 800 × 800 px (1:1 Circle Crop). Displays across comments, channel headers, and subscriber notifications.

For banners, YouTube renders responsive crops:

  • TV Displays: Shows full 2560 × 1440 px.
  • Desktop Displays: Shows 2560 × 423 px central horizontal strip.
  • Mobile Devices (All Phones): Crops down to the central 1546 × 423 px area. All logos, slogans, and social links must sit within this 1546×423 zone.

4. TikTok Video Cover & Canvas Dimensions

  • Video Cover / Story: 1080 × 1920 px (9:16 Ratio).
  • Profile Avatar: 200 × 200 px minimum (renders as circle).

TikTok possesses the heaviest UI obstruction of any platform. The right 18% of the screen is occupied by interactive icons (creator avatar, follow plus badge, heart like count, comment bubble, bookmark icon, share arrow, and rotating vinyl sound disc). The bottom 26% is obscured by your caption, hashtags, and sound title. Center all text inside the remaining middle quadrant.

5. Facebook Image Dimensions

  • Feed Post (Single Image / Link Preview): 1200 × 630 px (1.91:1 Ratio).
  • Page Cover Photo: 820 × 312 px on desktop, automatically cropped to 640 × 360 px on mobile smartphones.
  • Profile Picture: 180 × 180 px minimum (displays at 170×170 on desktop, 128×128 on smartphones).
  • Facebook Story: 1080 × 1920 px (9:16 Ratio).
  • Group Cover Photo: 1640 × 856 px (1.91:1 Ratio).

6. LinkedIn Image Sizes for Professionals

  • Feed Post (Image or Link Preview): 1200 × 627 px (1.91:1 Ratio).
  • Personal Background Banner: 1584 × 396 px (4:1 Ratio). Your circular profile photo covers the bottom-left 25% of this banner on desktop viewports.
  • Company Page Cover Banner: 1128 × 191 px.
  • Company Logo: 300 × 300 px (Square).

7. X (Twitter) Image Dimensions

  • Timeline Feed Post: 1600 × 900 px (16:9 Ratio). Also accommodates 1:1 squares at 1080×1080 px.
  • Header Banner: 1500 × 500 px (3:1 Ratio). Keep in mind that your circular avatar overlaps the bottom-left corner and the browser navigation bar sits over the top margin.
  • Profile Avatar: 400 × 400 px (renders as circle).

8. Pinterest Pin Dimensions

  • Standard Pin: 1000 × 1500 px (2:3 Ratio). Pinterest officially warns that pins longer than 1:2.1 will be truncated in search feeds.
  • Square Pin: 1000 × 1000 px (1:1 Ratio).
  • Board Cover Image: 600 × 600 px.

9. Summary of the Golden Safe-Zone Rules

  1. Keep text away from all 4 borders: Maintain at least an 8% padding margin on all sides.
  2. Check thumbnail corners: YouTube covers the bottom right; TikTok covers the bottom and right edge; Instagram covers top status and bottom reply areas.
  3. Test circular crops for avatars: Never place text near the 4 corners of a square profile graphic.
  4. Audit multi-device banners: Never rely on desktop view alone for Facebook, LinkedIn, or YouTube banners.

Test Your Images with Real-Time Safe Zones in ResizeKit

Why memorize these dozens of numbers when you can see platform safe zones overlaid directly on top of your photo in real time?

Launch ResizeKit Resizer →
MK

Written by Mubarak Khan

Lead Engineer at MSTechYT and creator of ResizeKit. Specialist in technical SEO, visual performance optimization, and browser-first web tooling.

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