Instagram Post Sizes 2026: Portrait, Square, Reels and Story Dimensions
Updated: October 25, 2026 · 2 min read
If your image gets cut off on Instagram or looks odd in your profile grid, the size is usually the reason. We've collected the right dimensions as of 2026 in one list. Save it, you'll need it.
Quick reference
- Feed post (portrait): 1080 × 1350 px, 4:5. Takes up the most space in the feed.
- New portrait post (3:4): 1080 × 1440 px. Instagram started supporting this ratio in 2025; it shows uncropped in the profile grid.
- Square post: 1080 × 1080 px, 1:1.
- Profile grid preview: 3:4. Posts show as tall rectangles on your profile; keep key text in the middle.
- Reels and Stories: 1080 × 1920 px, 9:16.
- Carousel: up to 20 slides; all slides share one ratio.
- Profile photo: 320 × 320 px; cropped to a circle, so center your logo.
Instagram's new size: 3:4
In January 2025 Instagram switched the profile grid from squares to tall rectangles (3:4) and started accepting 3:4 photos, 1080 × 1440 px. 4:5 is still the most common format, but its edges get trimmed slightly in the grid. If a clean profile grid matters to you, use 3:4; if you want the most space in the feed, 4:5 is still a good choice.
Lengths: how long can Reels and Stories be?
- Reels: up to 3 minutes. Instagram raised the limit from 90 seconds to 3 minutes in January 2025.
- Stories: up to 60 seconds per story. Longer videos are split into 60-second parts automatically.
- Carousel videos: up to 60 seconds per slide.
The Reels safe area
On Reels, your profile name sits at the top, the caption and music at the bottom, and the like-comment-share buttons on the right. Keep your text and logo away from those areas, in the middle of the screen. Check the preview before sharing.
Fitting one image to every format
In IZY Social, the Crop button lets you switch between a 4:5 post and 9:16 Story/Reels and set the framing by dragging and zooming. You can fill gaps with blur or white. Steps are in the Creating a post guide.
- 1Prepare the image at 1080 px wide.
- 2Crop to 4:5 for the feed and 9:16 for Reels and Stories.
- 3If cropping leaves gaps, fill them with blur or a solid colour; don't stretch the image.
Frequently asked questions
Does Instagram accept landscape photos?
Yes, up to a 1.91:1 ratio, but portrait 4:5 images take up much more space in the feed.
Why does the quality drop?
Instagram scales images down to at most 1080 px wide. Uploading larger doesn't help; upload at 1080 px wide without heavy compression.
What size is an Instagram post in inches?
Instagram works in pixels, not inches. If your design app needs physical units, 1080 × 1350 px at 300 DPI is 3.6 × 4.5 inches.
What's the best portrait size for Instagram?
1080 × 1350 px (4:5) or the newly supported 1080 × 1440 px (3:4). Both are portrait; 3:4 shows uncropped in the profile grid.