Common Facebook image dimensions
Facebook displays imagery across mobile feeds, desktop timelines, link previews, and full-screen vertical Stories. Platform dimensions should be periodically reviewed because social-media recommendations can change over time.
Common dimensions include horizontal Facebook Posts (1200 × 630, ~1.91:1), Square Posts (1080 × 1080, 1:1), and vertical Stories (1080 × 1920, 9:16).