Facebook Post Size (2026): Best Image Dimensions

Why 4:5 is the Facebook post size to use

• Vertical takes up more of the feed. At the same width, a 4:5 image is 25% taller than a square, so it fills more of a phone screen while people scroll and gives your text more room to breathe. More room means you can use bigger type, which matters on small screens.
• It is what Meta recommends. Meta’s feed guidance recommends 4:5 vertical for Facebook Feed, so you are working with the format the feed is built around instead of against it.
• One design covers Facebook and Instagram. A 4:5 image at 1080 × 1350 also sits inside what Instagram keeps uncropped (see the Instagram post size guide), so you can post the same file on both and keep one master design instead of two.

Common mistakes to avoid

• Posting a full-screen Story image to the feed. A 9:16 image is taller than 4:5, so it may be cropped in the feed and lose the top or bottom of your design. Make a separate 4:5 version.
• Text right at the edges. How much of an image shows can vary by device and placement, so leave a margin around titles and logos. The free Social Safe Zones tool helps you check.
• Uploading small images. A picture that is only a few hundred pixels wide looks soft once it is stretched to fit a phone screen. Export at 1080 pixels wide, and check the result on your own phone before you post it to a page or group.

Frequently Asked Questions