Instagram Image Sizes 2026: Every Format & Dimension (Updated)
Instagram quietly updated its profile grid to a taller 3:4 format in 2025, ending the square-grid era. If you're still designing square posts for a layout that no longer exists, your photos may look off in grid previews. This guide gives you every correct Instagram image size for 2026 — feed posts, Stories, Reels, profile pictures — and shows you how to resize any photo for free in under a minute.
What Changed in 2025: The New 3:4 Grid
Before 2025, Instagram previewed all feed posts as squares (1:1) in the profile grid. In mid-2025, Instagram switched to a 3:4 aspect ratio for grid thumbnails, meaning your images are now previewed taller — at roughly 1080 × 1440 px — rather than cropped to a square. The actual feed post and its aspect ratio are unchanged; only the grid thumbnail preview is affected.
What this means in practice: if you want your profile grid to look intentional and uncropped, upload portrait photos at 1080 × 1350 px (4:5 ratio) or taller. Square or landscape photos will still display correctly in the feed but will appear letterboxed or cropped in the grid.
Instagram Feed Post Sizes 2026
Instagram supports three aspect ratios for feed posts. All should be uploaded at 1080 px wide for the sharpest resolution.
Portrait Post (Recommended)
1080 × 1350 px — 4:5 ratio. This is the best all-round choice for 2026. It takes up the maximum vertical space in the feed (Instagram's ceiling for portrait posts), which means more screen real estate as users scroll. It also previews cleanly in the new 3:4 grid with minimal cropping.
Square Post
1080 × 1080 px — 1:1 ratio. Still supported and still looks clean. Note that the new 3:4 grid will pad the top and bottom of square images with white or grey bars when viewed on your profile.
Landscape Post
1080 × 566 px — 1.91:1 ratio. Landscape posts take up the least feed space and appear even smaller in the new grid. Use for panoramas or screenshots where width is essential; otherwise portrait is preferable.
New Grid Preview
If you're designing a cohesive profile grid, plan your crops at 1080 × 1440 px (3:4). This is how Instagram thumbnails your images for profile visitors in 2026.
Instagram Stories and Reels Size 2026
1080 × 1920 px — 9:16 ratio. This is the full-screen mobile format for both Stories and Reels. Keep critical content (text, faces, logos) within the central safe zone of 1080 × 1610 px, because Instagram overlays UI elements (username, buttons, captions) in roughly the top 14% and bottom 35% of the frame.
- Minimum resolution: 600 × 1067 px
- Max file size: 8 MB (photo), 100 MB (video)
- Supported formats: JPG, PNG, MP4, MOV
Instagram Profile Picture Size 2026
Upload your profile photo at 320 × 320 px minimum. Instagram stores the file at 320 × 320 px but displays it as a cropped circle at 110 × 110 px on mobile. For sharp display on high-resolution screens, upload at 400 × 400 px or larger. Always use a square image — anything non-square will be cropped to a circle automatically.
Instagram Image Sizes — Quick Reference Table
| Format | Recommended Size | Aspect Ratio | Notes |
|---|---|---|---|
| Feed — Portrait | 1080 × 1350 px | 4:5 | Best for feed visibility in 2026 |
| Feed — Square | 1080 × 1080 px | 1:1 | Letterboxed in new grid |
| Feed — Landscape | 1080 × 566 px | 1.91:1 | Least feed space, use sparingly |
| Grid Preview (3:4) | 1080 × 1440 px | 3:4 | New profile grid format since 2025 |
| Stories | 1080 × 1920 px | 9:16 | Safe zone: 1080 × 1610 px |
| Reels | 1080 × 1920 px | 9:16 | Same as Stories |
| Profile Picture | 320 × 320 px | 1:1 | Upload 400 × 400 px for retina |
How to Resize Your Image for Instagram — Free, No Signup
Getting the dimensions exactly right is straightforward with the right tool. ChangeImageTo's free Instagram Image Resizer lets you upload any photo and resize it to the correct Instagram format in seconds — no account, no watermark, no download limit.
- Go to changeimageto.com/resize-image-for-instagram.html
- Upload your photo (JPG, PNG, or WebP)
- Select your format: Post, Story, Reel, or Profile Picture
- Click Resize — the tool adjusts dimensions without distorting your image
- Download your resized file instantly
If you also need to improve photo quality before uploading — sharpen a blurry shot, boost a low-res image — try the Image Quality Checker first to see exactly where your photo stands, then use the AI Image Upscaler to bring it up to Instagram's recommended 1080 px width without pixelation.
Upload your photo and get the perfect size in one click.
→ Try the Instagram Resizer for free
Tips for Sharp Instagram Photos in 2026
- Upload JPG at highest quality — aim for 80–95% quality in your export.
- Use sRGB colour space — images in wide-gamut colour profiles often appear washed out on Instagram.
- Resize to exactly 1080 px wide — uploading larger files makes Instagram scale them down, which can introduce artifacts.
- Portrait crops travel further — a 4:5 portrait image gives you roughly 33% more screen time than a square.
FAQ
What is the best Instagram image size in 2026?
The best all-round size is 1080 × 1350 px (4:5 portrait ratio). It takes up the most vertical space in the feed, boosting visibility. For the new 3:4 grid preview, upload at 1080 × 1440 px.
What size are Instagram Stories and Reels in 2026?
Stories and Reels should be 1080 × 1920 px, 9:16 ratio. Keep important content within the central safe zone of 1080 × 1610 px to avoid it being hidden by the UI.
Did Instagram change its grid size in 2025?
Yes. Instagram switched from a square (1:1) grid preview to a taller 3:4 format in 2025. Profile grids now preview images at roughly 1080 × 1440 px. Feed posts themselves still support multiple aspect ratios — only the thumbnail preview changed.
What is the Instagram profile picture size?
Upload at 320 × 320 px minimum. Instagram displays it as a circle at 110 × 110 px on mobile, but stores at 320 × 320 px. Upload 400 × 400 px or larger for crisp display on retina screens.
What is the maximum file size for Instagram photos?
Instagram accepts images up to 8 MB for photos. For video, the limit is up to 100 MB for Reels. Keep JPEGs under 8 MB and PNGs under 5 MB for reliable uploads.
How do I resize an image for Instagram without cropping?
Use the free Instagram Resizer at ChangeImageTo. Upload your photo, choose your format, and download — no cropping, no watermark, no signup needed.