Instagram Post Size: 1080x1350 (2026)
The best Instagram post size is 1080x1350 pixels, a 4:5 portrait. Square posts are 1080x1080 and landscape is 1080x566. Portrait takes up the most feed real estate, which is why most creators default to it. Here's every format and what to use when.
Takes up the most feed real estate. Best for engagement and stop-scrolling impact.
Instagram post sizes at a glance
Copy these into your canvas. Export at 1080 wide minimum, smaller uploads get upscaled and go soft.
Carousel slides all have to share one aspect ratio. Mix square and portrait and Instagram crops them in ways you won't like.
Or describe the post and let the AI Instagram post maker build it at the exact size, fully editable.
Every Instagram size in one place
A quick-reference table. Krumzi's AI designer handles these dimensions automatically when you pick the format, so this is really just for the manual crowd.
Or let Krumzi build the Instagram design for you.
Describe what you need. Krumzi handles the layout, fonts, and colors, then exports a ready-to-publish design at the exact 1080x1350 format. No template hunting.
Make an Instagram post with AIInstagram design tips that matter
Knowing the pixel sizes is half the battle. Here's what separates designs that get engagement from designs that don't.
Default to 1080x1350
Portrait posts take up 78% more screen than landscape. Bigger surface area, more engagement.
Carousels must match
All slides in a carousel must use the same aspect ratio. Mix square and portrait and Instagram crops them weirdly.
Center the focal point
When Instagram generates thumbnails for the grid, it crops to square. Keep your subject in the middle 1080x1080 area.
Export at 1080 wide minimum
Anything smaller and Instagram upscales it, which kills sharpness. 1080px wide is the magic number.
Frequently asked questions
1080x1350 pixels (4:5 portrait) is the recommended size. It takes up the most feed real estate and consistently gets higher engagement than square or landscape posts.
Yes. Use 1080x566 (1.91:1 landscape). It will display smaller in the feed than portrait, so only use landscape when the photo demands it (wide landscapes, group shots).
1080x1080 (square) or 1080x1350 (portrait). All slides in the carousel must use the same aspect ratio, so pick one and stay consistent.
It still works. Square posts are timeless and great for carousels. But if you want maximum feed presence, switch to 1080x1350 portrait.
Instagram supports 1.91:1 to 4:5. Anything outside that range gets cropped automatically. The grid (profile view) always crops to 1:1 regardless of post size.
Related size guides
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