B2B Social Media Marketing Tips

The Ultimate Social Media Image Size Guide: Updated for 2026

Written by Marta Grabowska | April 25, 2025

Whether you’re a marketer focused on reach, a content creator driving engagement, or a brand scaling employee advocacy on social media, using the right image sizes is essential. Optimized visuals take up more screen space, feel more native in the feed, and are more likely to stop the scroll — especially on mobile-first platforms.

52% of respondents say that social media has become more important for their organization due to economic uncertainties (Source: Meltwater).

This guide brings all the recommended and supported social media image sizes for 2026 into one clear, easy-to-use resource, so you can publish confidently and maximize performance across every channel.

Without further ado, let’s dive into it!

Instagram 

  • Profile photo
    • 320 × 320 pixels
      • (Displayed as a circle)

  • Regular image post: 
    • Recommended: 4:5 ratio (1080 × 1350 pixels)
    •  Supported: 1:1 (1080 × 1080), landscape formats
      • While Instagram still supports square (1:1) and landscape formats, vertical 4:5 posts take up more screen space and typically perform better in-feed.
  • Reels:
    • 9:16 ratio (1080 x 1920 pixels)

  • Stories:
    • 9:16 ratio (1080 x 1920 pixels)

  • Feed Ads
    • Best-performing format: 4:5 ratio (1080 × 1350 pixels)
    • Also supported: 1:1 ratio (1080 × 1080 pixels)
       
  • Story ads
    • 9:16 ratio (1080 × 1920 pixels)
      •  Keep important elements within safe zones

Instagram feed ads see CTRs between 0.22% and 0.88%, whereas Stories ads experience a narrower CTR range of 0.33% to 0.54% (Source: Brafton).

 

LinkedIn

  • Profile photo:
    •  400x400pixels

  • Header:
    • 1128x191 pixels

  • Organic posts: 
    • Image post:
      • Recommended: 1:1 ratio (1200 × 1200 pixels)
      • Supported: 1.91:1 (1200 × 627), vertical formats  
        • Square images perform best on mobile-first feeds

  • Company Pages– Life tab:
    • Main image: 1128 × 376 pixels
    • Custom modules: 502 × 282 pixels
    • Company photos: 900 × 600 pixels
  • Ads:
    • Carousel ads: 1:1 ratio( at least 1080 x 1080 pixels)
    • Standard image ads: Max file size: 5 MB
      • Ratios supported:  
        • 1:1 (square – desktop & mobile)
        • 1.91:1 (landscape – desktop & mobile)
        • Vertical formats (mobile only)
  • Video ads:
    • File: MP4
    • Audio: AAC or MPEG4
    • Ratios supported: 
      • 1:1 (square)
      • 4:5 (vertical)
      • 9:16 (portrait)
      • 16:9 (landscape)

  • Custom thumbnails:
    • Recommended: 4:5 or 1:1
      • Keep key elements centred for mobile cropping

Video is 5x more likely to spark a conversation than any other type of content shared on LinkedIn (Source: LinkedIn Ads Blog).

 

Facebook

  • Profile photo:
    • 176 x 176 pixels (on desktop)
    • 196 x 196 pixels (on smartphones)
      • Upload a square image for best results

  • Cover photos: 
    • 16:9 ratio
    • Minimum resolution: 400x150 pixels
    • Recommended: 851 × 315 pixels

    • Loads fastest as a JPG under 100 KB

  • Organic post:
    • Image post:
      • Recommended: 4:5 ratio — 1080 × 1350 pixels
      • Also supported: 1:1 (1080 × 1080), landscape formats
        • Vertical images take up more screen space and typically perform better in-feed

  • Ads:
    • Feed ads: JPG or PNG 
    • Best-performing formats:
      • 4:5 — 1080 × 1350 pixels

      • 1:1 — 1080 × 1080 pixels

    • Supported: 1.91:1 (landscape)
    • Minimum resolution: 1080 × 1080 pixels

  • Stories ads:
    • File Type: JPG or PNG 
    • 9:16 ratio
    • Resolution: 1080 x 1920 pixels 
    • Keep important text, logos, and CTAs within safe zones to avoid UI overlap (roughly 14% at the top and 20% at the bottom)

Facebook photo posts have the highest engagement of all media formats at 0.12% (Source: Social Pilot).

X (formerly Twitter)

  • Profile photo:
    • Recommended: 400 x 400 pixels
    • File type: JPG, GIF, or PNG 
    • Displayed as a circle 

  • Header image:
    • Recommended: 1500 x 500 pixels

  • Organic posts: 
    • Image post:
      • Recomended:  1:1 ratio — 1200 × 1200 pixels
      • Supported: 1.91:1 (1200 × 628 pixels)  
      • Square images are less likely to be cropped across devices
    • File type: JPG, PNG, GIF.
    • File size: up to 5 MB 

  • Ads: 
    • Image ads: 
      • File type: PNG or JPEG  
      • Max file size: 5 MB  
      • Supported ratios:
        • 1:1 — 1200 × 1200 pixels
        • 1.91:1 — 1200 × 628 pixels

  • Video ads: 
    • Supported ratios:
      •  1:1 — 1200 × 1200 pixels
      • 16:9 — 1920 × 1080 pixels

82% of B2B companies are using Twitter to share their latest content, promote offerings, and connect with their target audience (Source: Content Marketing Institute).

Pinterest

  • Ads:
    • Recomended: 2:3 ratio (1000 x 1500 pixels)
      • Vertical Pins remain the best-performing format on Pinterest in 2026, as they take up more space in the feed and align with discovery-driven browsing.
  • Carousel ads: 
    • File type: PNG or JPEG
    • Max file size: 20 MB
    • Creative quantity: 2 to 5 images per carousel
    • Supported ratios:
      • Recomended 2:3 ratio
      • 1:1 ratio (square)

  • Video pins:
    • Full-bleed video (recommended):
      • 9:16 ratio

      • 1080 × 1920 pixels

    • Other supported ratios:
      • 1:2, 2:3, 3:4, 4:5, or 1:1 
    • File type and compression should be optimized for mobile playback
    • Vertical video continues to perform best as Pinterest increasingly prioritizes immersive, mobile-first content.
  • Image pin:
    • To ensure text, logos, and key elements remain visible across devices, keep important content within the following safe areas:.
      • Top: 270 px
      • Left: 65 px
      • Right: 195 px
      • Bottom: 790 px
      • Avoid placing critical elements near the edges, as Pins may be cropped in different feed contexts.

Running Pinterest Ads is More Cost-Effective Per Conversion: in fact, they are 2.3x cheaper per conversion (Source: The Social Shepard).

TikTok

  • Profile pic:
    • Recommended: 200 × 200 pixels
    • Upload a square image for best results (displayed as a circle in the app)
  • Video (organic & ads):
    • Recommended format: 9:16 ratio

    • Resolution: 1080 × 1920 pixels

    • File type: MP4 or MOV

    • Max file size:

      • Up to 72 MB (Android)

      • Up to 278.6 MB (iOS)
      • Vertical, full-screen video remains the dominant and best-performing format on TikTok in 2026, as the platform is entirely mobile-first and designed to be immersive.

Consumer spending on TikTok crossed over $1 billion globally in 2023, and the average engagement rate on TikTok is 5.95% (Sources: Social Pilot and House of Marketers).