What matters
Facebook Post Image dimensions at a glance
The 1200×630 landscape format is Facebook's standard for feed posts and link previews. It displays reliably across desktop and mobile without unexpected cropping in most cases.
This is the most-seen image format on Facebook. Getting it right means your post looks intentional in the feed rather than auto-cropped from a random size.
Off-ratio images get center-cropped in the feed card, which can cut off headlines, product details, or faces placed near edges.