Facebook Post Image Size: Best Practices for Maximum Reach and Visual Impact

With over two billion daily active users, Facebook remains one of the most powerful platforms for visual content distribution. The dimensions and format of your post images directly affect how they appear in the news feed, how quickly they load, and ultimately how much organic reach they generate. An incorrectly sized image may be auto-cropped, compressed into poor quality, or displayed in a way that cuts off your message. This guide covers optimal image sizes for regular posts, link preview images, Stories, and carousel ads, along with an explanation of how different aspect ratios behave in the news feed.

Facebook Post Image Sizes at a Glance

Post Type	Recommended Size	Aspect Ratio	Max File Size	Formats
Standard single image post	1200 × 630 pixels	1.91:1	30 MB	JPG, PNG, GIF
Square post image	1080 × 1080 pixels	1:1	30 MB	JPG, PNG
Portrait post image	1080 × 1350 pixels	4:5	30 MB	JPG, PNG
Link preview image (OG Image)	1200 × 630 pixels	1.91:1	8 MB	JPG, PNG
Stories	1080 × 1920 pixels	9:16	30 MB	JPG, PNG
Carousel ad (per card)	1080 × 1080 pixels	1:1	30 MB	JPG, PNG
Multi-photo post (lead image)	1200 × 1200 pixels	1:1	30 MB	JPG, PNG

Standard Post: Why 1200×630px Is the Default Choice

The 1200×630 pixel size (1.91:1 aspect ratio) is Facebook’s recommended dimension for single image posts. This ratio closely matches the widescreen format common in digital advertising and fills a generous portion of the news feed without triggering any automatic cropping. On desktop, the image renders at near-full column width; on mobile, it scales down proportionally without requiring the user to tap to expand.

This size is also perfectly aligned with the Open Graph protocol specification, meaning the same image can serve as both your Facebook post image and the link preview thumbnail on any website that uses OG meta tags — saving you time and ensuring visual consistency across channels.

Square Images: The 1080×1080px Mobile Advantage

Square images at 1:1 take up more vertical space on a mobile news feed than landscape images at the same width. Because mobile users scroll vertically, more vertical space means more time your content spends in their viewport — and more time in view correlates with higher engagement. Studies consistently show square images outperforming landscape images in mobile engagement metrics, including likes, shares, and comments.

Square images work exceptionally well for:

• Product close-up shots where the subject fills the frame
• Quote cards and typographic designs
• Infographics with primarily vertical or square layouts
• Event announcements and promotional posters

Link Preview Images (OG Images): Ensuring Correct Display

When you paste an external URL into a Facebook post, the platform fetches the target page’s Open Graph metadata and displays a preview card containing the OG image, title, and description. The correct OG image size is 1200×630 pixels. If the OG image is missing, incorrectly sized, or cached with an outdated version, your link will display either no image or a tiny, unappealing thumbnail.

To ensure your link previews look professional every time:

• Add the correct OG meta tag to your page’s HTML head: <meta property="og:image" content="https://yourdomain.com/image.jpg">
• Size the OG image at exactly 1200×630 pixels and keep the file under 8 MB.
• Use Facebook’s Sharing Debugger tool to verify that your URL is being parsed correctly and the right image is being fetched.
• After updating your OG image, click “Scrape Again” in the Sharing Debugger to clear the cached version.

Facebook Stories Image Specifications

Facebook Stories use a full-screen vertical format at 1080×1920 pixels (9:16 aspect ratio). The immersive full-screen experience requires careful attention to the safe zone:

• Top 250 pixels: Reserved for the progress bar, the poster’s profile photo, username, and timestamp. Keep this area free of critical content.
• Bottom 250 pixels: Reserved for the reply input bar and interactive stickers. Avoid placing text or key visuals here.
• Safe zone: The central 1080×1420 pixel area is where all important content — text, branding, calls-to-action — should be placed.
• Stories images display for a default of 5 seconds; Facebook allows up to 7 seconds per image with certain settings.

Carousel Ad Image Specifications

Carousel posts allow you to showcase 2 to 10 images or videos in a single scrollable unit. Each card has its own headline, description, and call-to-action link, making carousels one of the most versatile ad formats for storytelling and product showcases.

Specification	Value
Recommended image size	1080 × 1080 pixels
Minimum image size	600 × 600 pixels
Aspect ratio	1:1 (square)
Headline per card	40 characters recommended
Number of cards	2–10 cards
Max file size per card	30 MB

How Different Aspect Ratios Display in the News Feed

Facebook treats different image proportions differently when rendering them in the news feed. Understanding these behaviors helps you design with intent:

• 1.91:1 (landscape): Displays at full column width without cropping. Ideal for panoramic scenes, wide-format graphics, and banner-style designs.
• 1:1 (square): Displays at full width with equal height, taking up more vertical space than landscape on mobile. Consistently strong engagement performance.
• 4:5 (portrait): The maximum portrait ratio Facebook supports in the news feed without cropping. Takes up the most vertical screen space of any format, making it the most scroll-stopping option on mobile.
• 16:9 (video thumbnail ratio): Similar to 1.91:1 but slightly taller. Common for video post thumbnails and displays cleanly without cropping.
• Taller than 4:5 (e.g., 9:16): When used in a standard post (not Stories), Facebook automatically crops the image to 4:5 for display. If your composition relies on content outside the 4:5 center region, it will be cut off.

Post Image Optimization Tips

• Keep text to less than 20% of the total image area. Facebook’s ad delivery algorithm penalizes image-heavy text in paid promotions, and excessive text also reduces organic readability on small screens.
• Use bold color contrasts to stand out against the white news feed background. High-contrast images stop the scroll more effectively than muted palettes.
• Always preview your image on a mobile device before publishing. What looks balanced on a 27-inch monitor may feel cramped or illegible on a 6-inch phone screen.
• Save designed graphics — anything with text, logos, or geometric shapes — as PNG to preserve sharp edges. Save photography as JPG at 85–90% quality to balance file size and visual clarity.

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