Why Image Dimensions Matter on Social Media
Every social media platform has its own image processing pipeline. When you upload an image that does not match the expected dimensions, the platform either crops it automatically, stretches it to fill the space, or adds white bars around it. None of these outcomes look intentional, and all of them reduce the visual quality of your content.
Getting the dimensions right before uploading ensures your images are displayed exactly as designed, without unexpected cropping of faces or text, compression artifacts from scaling, or awkward dead space around the content.
Twitter / X
Twitter's image display varies by context. For single-image tweets, images are displayed in a 16:9 crop preview in the feed, with the full image visible when tapped. The recommended image size is **1200 × 675 pixels** at 16:9 ratio for standard landscape images.
For portrait images, Twitter displays up to approximately 4:5 ratio in the feed preview. If you upload a very tall image, Twitter crops it to fit the feed and users need to tap to see the full version.
Twitter profile photos are displayed at 400 × 400 pixels (uploaded at this size or higher for quality). The profile header banner is **1500 × 500 pixels**. For Twitter Cards used with link previews, the large card image is 1200 × 628 pixels (1.91:1 ratio).
The maximum file size for images on Twitter is 5 MB for JPEG and PNG. WebP is supported for upload.
Instagram's square roots have evolved into a multi-format platform. The three main feed formats and their optimal sizes:
**Square posts:** 1080 × 1080 pixels (1:1 ratio). The original Instagram format, still popular for single-subject photos and graphics.
**Landscape posts:** 1080 × 566 pixels (1.91:1 ratio). Displayed in the feed at 1080 × 566 and on profile grid at a 1:1 crop showing the center.
**Portrait posts:** 1080 × 1350 pixels (4:5 ratio). This is the recommended format for feed posts because it takes up the most vertical space in the feed, which increases visibility. Profile grid shows a 1:1 center crop.
**Stories and Reels:** 1080 × 1920 pixels (9:16 ratio). Full-screen vertical format. Keep important content away from the edges, as the UI overlays the top and bottom portions.
Instagram compresses images during upload. For best quality, export at 1080 pixels wide at the appropriate height, saved as JPEG at quality 80 or higher.
Facebook uses different image dimensions across its various surfaces.
**Feed posts:** Recommended 1200 × 630 pixels. Facebook scales images to fit within a maximum width of 1200 pixels. Square images display at 1:1. Landscape images display at up to 1.91:1.
**Profile picture:** 170 × 170 pixels displayed, though uploading at 400 × 400 or higher ensures quality when viewed full-size. Always displays as a circle.
**Cover photo:** 820 × 312 pixels on desktop, 640 × 360 on mobile. Since the image must work at both sizes, keep important elements in the center horizontal band between approximately 100 and 212 pixels from the top.
**Facebook event cover:** 1920 × 1005 pixels, displayed at 1920 × 1005 on desktop and cropped to 1920 × 1080 on mobile.
**Link preview images:** 1200 × 628 pixels. This Open Graph image size is used when sharing URLs on Facebook and many other platforms.
LinkedIn is a professional network and its image standards reflect that.
**Feed image posts:** 1200 × 628 pixels (1.91:1) for landscape. Square images at 1200 × 1200 also display well. Portrait images at 628 × 1200 pixels take up more feed space.
**Profile picture:** Displayed at 400 × 400 pixels. Upload at this size or larger. LinkedIn displays the photo as a circle.
**Profile background banner:** 1584 × 396 pixels (4:1 ratio). Keep text and important elements in the center, as the banner is cropped on mobile.
**Company page logo:** 300 × 300 pixels for the profile icon. 1192 × 220 pixels for the company page banner.
**LinkedIn article cover image:** 1200 × 644 pixels.
LinkedIn compresses images significantly. Uploading at 2× the display size with high JPEG quality (85+) helps maintain sharpness after compression.
YouTube
YouTube content centers around video, but several image types matter.
**Channel banner:** 2560 × 1440 pixels. This single image is cropped differently across devices: TV displays show the full image, desktop shows a 2560 × 423 px center crop, and mobile shows 1546 × 423 px. The safe zone for text and logos is approximately 1235 × 338 pixels centered in the banner.
**Channel profile picture:** 800 × 800 pixels displayed as a circle.
**Video thumbnail:** 1280 × 720 pixels (16:9). Thumbnails are the most viewed image on YouTube — they appear in search results, suggested videos, and the homepage. High contrast, readable text, and clear subject matter perform best. Use JPEG for photographs and PNG for graphics with text.
Quick Reference
| Platform | Profile Photo | Feed Post | Cover/Banner | |----------|--------------|-----------|--------------| | Twitter/X | 400 × 400 | 1200 × 675 | 1500 × 500 | | Instagram | 320 × 320 | 1080 × 1080 | 1080 × 1920 (Story) | | Facebook | 170 × 170 | 1200 × 630 | 820 × 312 | | LinkedIn | 400 × 400 | 1200 × 628 | 1584 × 396 | | YouTube | 800 × 800 | — | 2560 × 1440 |
When preparing images for multiple platforms, start with the largest required size and resize down. This single-source approach is more efficient than creating separate source files for each platform.