What matters
Instagram Landscape Post dimensions at a glance
Landscape feed posts at 1080×566 use a 1.91:1 ratio, which is Instagram's widest supported feed format. They work well for cinematic scenes, group shots, or horizontal product layouts that lose impact when cropped square.
Some subjects simply look better horizontal. Using the correct 1.91:1 ratio ensures Instagram displays the full image without adding bars or cropping into the composition unpredictably.
Landscape images uploaded at the wrong ratio get auto-cropped to the nearest supported format. On the profile grid, landscape posts are center-cropped to square, which can cut off subjects on the sides.