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Social Media Image Sizes and Instagram Post Size Guide
The standard Instagram post size in pixels is 1080 x 1080 for square posts, with 1080 x 1350 for portrait. This reference also covers Facebook covers, YouTube thumbnails, and more.
Overview
The standard Instagram post size in pixels is 1080 x 1080 for square posts, with 1080 x 1350 for portrait. This reference also covers Facebook covers, YouTube thumbnails, and more.
| Format | Dimensions (px) | Aspect Ratio |
|---|---|---|
| Feed post (square) | 1080 x 1080 | 1:1 |
| Feed post (portrait) | 1080 x 1350 | 4:5 |
| Feed post (landscape) | 1080 x 566 | 1.91:1 |
| Story / Reel | 1080 x 1920 | 9:16 |
| Profile photo | 320 x 320 | 1:1 |
| Carousel | 1080 x 1080 | 1:1 |
| Format | Dimensions (px) | Aspect Ratio |
|---|---|---|
| Cover photo | 851 x 315 | 2.7:1 |
| Profile photo | 170 x 170 | 1:1 |
| Feed post (image) | 1200 x 630 | 1.91:1 |
| Story | 1080 x 1920 | 9:16 |
| Event cover | 1920 x 1005 | 1.91:1 |
| Group cover | 1640 x 856 | 1.91:1 |
YouTube
| Format | Dimensions (px) | Aspect Ratio |
|---|---|---|
| Thumbnail | 3840 x 2160 recommended; 640 px minimum width | 16:9 |
| Channel banner | 2560 x 1440 | 16:9 |
| Channel icon | 800 x 800 | 1:1 |
| Video (1080p) | 1920 x 1080 | 16:9 |
| Video (4K) | 3840 x 2160 | 16:9 |
| Format | Dimensions (px) | Aspect Ratio |
|---|---|---|
| Profile banner | 1584 x 396 | 4:1 |
| Profile photo | 400 x 400 | 1:1 |
| Feed post (image) | 1200 x 627 | 1.91:1 |
| Company logo | 400 x 400 | 1:1 |
| LinkedIn Page cover | 4200 x 700 | 6:1 |
X (Twitter)
| Format | Dimensions (px) | Aspect Ratio |
|---|---|---|
| Header photo | 1500 x 500 | 3:1 |
| Profile photo | 400 x 400 | 1:1 |
| In-stream image | 1200 x 675 | 16:9 |
| Card image | 1200 x 628 | 1.91:1 |
If you're only going to get one social media image dimension right, get your Instagram feed dimensions correct at 1080 x 1350 (portrait 4:5). Portrait posts take up the most vertical screen space in the feed, which directly affects how much attention they pull before a user scrolls past. After that, a correctly sized YouTube thumbnail matters most for click-through rate, because matching the platform-specific image format for each placement is the foundation of image optimization for social.
Practical Quality Notes for Social Media Image Sizes and Instagram Post Size Guide
This guide is most helpful when the result is tied to a real workflow, not treated as a loose number. For Social Media Image Sizes and Instagram Post Size Guide, verify the exact platform placement, current upload rules, safe crop area, and final preview on mobile and desktop. That context prevents the common mistake of copying a pixel value into a print, web, or CSS workflow where the reference size is different.
Social Media Image Sizes and Instagram Post Size Guide should be checked with the formula, a realistic example, and the actual output requirement before you export or publish. If the number looks unexpectedly large or small, check the unit direction first, then check the DPI, base font size, viewport width, or physical measurement that controls the calculation.
A good review pass for Social Media Image Sizes and Instagram Post Size Guide is simple: calculate once, compare against a known example, and preview the final output at the size people will actually see. The standard Instagram post size in pixels is 1080 x 1080 for square posts, with 1080 x 1350 for portrait. This reference also covers Facebook covers, YouTube thumbnails, and more.
Checks Before You Use the Result
- Confirm that Social Media Image Sizes and Instagram Post Size Guide is using the same input unit your source file or design brief uses.
- Save the DPI, viewport, or font-size setting next to the final Social Media Image Sizes and Instagram Post Size Guide value so another person can reproduce it.
- Preview the Social Media Image Sizes and Instagram Post Size Guide output on the target medium before sending it to print, publishing it, or adding it to CSS.
- Recalculate Social Media Image Sizes and Instagram Post Size Guide after resizing, cropping, changing aspect ratio, or changing the root font-size or viewport assumption.
When the Number Needs a Second Look
Recheck the result if the project moves from screen to print, from desktop to mobile, from one social platform placement to another, or from a draft export to a production file. Small context changes can make a correct Social Media Image Sizes and Instagram Post Size Guide answer wrong for the final job.
Sources
Reference Sources
These external references support the page's conversion formulas, resolution guidance, and unit explanations.
w3.org
W3C: CSS Values and Units Module Level 4
Specification covering absolute lengths and resolution units such as px, in, cm, mm, pt, and dpi.
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developer.mozilla.org
MDN: CSS values and units
Reference guide for CSS measurement units and how browsers interpret physical and relative sizes.
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developer.mozilla.org
MDN: <resolution>
Reference for resolution units including dpi, dppx, and dpcm used in screen and print discussions.
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developer.mozilla.org
MDN: image-resolution
Explains how raster image resolution metadata interacts with CSS and print-oriented image workflows.
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support.google.com
YouTube Help: Custom Thumbnail Size and Resolution
Official YouTube custom thumbnail guidance, including resolution, aspect ratio, file type, and upload limits.
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Frequently Asked Questions
1080 x 1080 pixels for square posts. 1080 x 1350 pixels for portrait posts (4:5 ratio — best reach). 1080 x 566 pixels for landscape. All images are compressed to ~92 KB by Instagram. Upload at maximum quality and let Instagram handle compression.
820 x 312 pixels on desktop, 640 x 360 pixels on mobile. Upload at 820 x 462 pixels to cover both. Facebook compresses images below 100 KB, so upload JPEGs at maximum quality.
1280 x 720 pixels (16:9 aspect ratio). This is the minimum recommended. YouTube displays thumbnails as small as 120 x 68 pixels in search, so use large, bold text and high contrast for readability at small sizes.
DPI does not matter for social media. Pixel dimensions, aspect ratio, file format, and compression matter more because platforms resample uploads for screen delivery regardless of DPI metadata.