Social Media Image Sizes in 2026: Instagram, Facebook, X, LinkedIn

Why Do Image Sizes Matter on Social Media?

The first thing anyone notices when they land on a brand page is almost always the imagery. A cover photo uploaded at the wrong ratio gets cropped through the middle, leaving an important face or logo outside the frame; a post image uploaded at low resolution looks blurry and amateurish. These may sound like minor details, but they directly affect the trust a user places in the brand. Image size is also not limited to content shared on Instagram or Facebook: when a link to a web page is shared on WhatsApp, Slack or Discord, the image declared in the og:image tag is shown as the preview. Knowing the right sizes is a practical necessity for social media managers and website developers alike.

The problem grows when an agency or business publishes on several platforms at once: sending a single image to every platform at the same size means facing a different crop result on each one. A square post that looks great on Instagram produces a completely different composition when the same file is uploaded to a Facebook cover slot. Exporting at separate sizes for each platform in a content calendar therefore takes far less time than dealing with cropping surprises noticed after publication.

Image Sizes by Platform in 2026

The table below lists the image sizes the major platforms commonly recommend and that are most often used in practice. Values are in pixels (px), given as width × height.

Why These Sizes Are Not Fixed and Change From Time to Time

Social media platforms update their interfaces and technical specifications from time to time; the table above reflects the sizes most commonly cited under current general practice. For an ordinary post these values are perfectly adequate, but ahead of a large ad campaign or a product launch it is advisable to confirm the sizes in the relevant platform's own current help or developer documentation. If a campaign's images will be used across dozens of different placements, having to rebuild the entire set because of one wrong size is an expensive waste of time.

What Happens if You Upload the Wrong Ratio: How Cropping Works

When the aspect ratio of the uploaded image does not match what the platform expects, most platforms crop it automatically. That crop is usually based on the centre of the image (center-crop): the platform preserves the middle and cuts from the edges. The trouble is that in many designs an important element — a face, a headline, a logo — sits right near the edge. A cover image uploaded at the wrong ratio can quietly cut those elements away, and you may publish it without noticing. Preparing platform-specific images and always previewing before publishing is therefore the only reliable way to avoid cropping surprises.

The 2× Rule for Retina / HiDPI Screens

The sizes in the table represent the resolution at which the platform displays the image on screen. Uploading an image at roughly twice the listed resolution while preserving the same aspect ratio generally produces a sharper result on high-density (Retina/HiDPI) screens, as long as it stays within the file size limit. Starting from a 2400 × 1260 source file for a 1200 × 630 placement, for example, helps preserve sharpness while the platform scales the image down.

The Open Graph Image: One Size, Broad Compatibility

The Open Graph row in the table (1200 × 630) also applies to many contexts that have no row of their own. The link preview systems of apps like Slack, Discord, iMessage and WhatsApp mostly build their preview image by reading the og:image meta tag in the page's HTML rather than using a size of their own. Declaring a 1200 × 630 og:image on every shareable page of your site therefore gives you broad cross-platform compatibility with a single image, and guarantees that your link looks right when it is shared on social media.

Common Mistakes

• Uploading the same square (1:1) image to every platform; Stories and Reels need the 9:16 portrait format, and a square image gets cropped at the sides there.
• Not declaring an og:image in the page's HTML; when the link is then shared, the platform may pick an arbitrary image or show none at all.
• Positioning important text or a logo too close to the edge of a cover photo; Facebook and LinkedIn cover areas can crop differently on different devices.
• Letting the platform enlarge a low-resolution image; this always ends in blurriness.

Profile Photo and Logo Sizes: Small but Critical

The profile photo sizes in the table (Instagram 320 × 320, Facebook 170 × 170, X 400 × 400, LinkedIn 300 × 300, WhatsApp Business 500 × 500) are close to one another, but each is uploaded as a square area and displayed inside a circular frame on most platforms. If a logo has an important element near the corners, that circular crop can make it invisible. When preparing a profile photo or logo, therefore, keeping the important content near the centre of the image and leaving a safe margin at the edges keeps the result legible however the platform crops it.

A Practical Checklist for Preparing Images

• Confirm the exact size or ratio in the table for the platform and placement you are publishing to.
• Where possible, start from a source file at roughly 2× resolution in the same ratio, for high-density screens.
• Position important text, faces or logos away from the edges of the image and closer to the centre.
• Always check the image in the platform's own preview screen before publishing.
• Check whether you have declared a 1200 × 630 og:image on the shareable pages of your site.

Rather than memorising these sizes every time, a quick check of how the image you have prepared needs to be cropped for a given platform is the practical answer.

When you are preparing a campaign or a content calendar, bookmarking this table is much faster than searching for platform sizes every time. Even so, remember: platforms may update these specifications, so before a critical launch it is worth making the final check in the relevant platform's own documentation.