Instagram Post size: 1080 x 1350 pixels.

1080 by 1350 pixels is the 4:5 portrait shape at the width Instagram renders feed images. It was the tallest single image the feed showed in full until Instagram added 3:4 uploads in 2025; it is still the tallest shape Facebook, LinkedIn and Threads show uncropped, so one 4:5 export covers all four. Meta's Ads Guide names 1440 by 1800 as the recommended resolution for the same 4:5 ratio, sets a 500 pixel minimum width, a 30 MB file cap and a 1 percent ratio tolerance, and lists 4:5 and 1.91:1 as the two ends of the accepted range.

Nothing is cropped in the feed itself. The crop happens on your profile, where the grid tile is 3:4, a little narrower than 4:5, so a 4:5 post loses a strip of about 34 pixels from the left and the same from the right. That strip is where the ends of a wide headline or a corner logo often sit, which is why a post that reads fine in the feed can look clipped on the grid. Instagram lets you choose the grid crop per post, but the default is centered. How a row of these posts reads together is the job of Instagram feed design: a pattern of looks that repeats, so the grid keeps its shape as you post.

Export JPG at quality 85 to 95 for photographs and PNG for flat graphics with text, since Instagram re-encodes everything and thin light type is the first thing to smear. Creobee makes every post at 1080 by 1350 for this reason, and the other sizes in this reference are described relative to it.