GuidesMay 19, 2026
Best Image Size for Instagram in 2026
Instagram post, story, and reel dimensions explained. Resize images to 1080×1080 and other official sizes free in your browser.
Instagramimage sizesocial mediaresize
Instagram compresses uploads aggressively. Starting with the correct dimensions gives you sharper posts and faster uploads.
Feed post sizes
| Format | Size (px) | Aspect ratio |
|---|---|---|
| Square | 1080 × 1080 | 1:1 |
| Portrait | 1080 × 1350 | 4:5 |
| Landscape | 1080 × 566 | 1.91:1 |
Stories and Reels
Full-screen vertical: 1080 × 1920 (9:16). Keep important text in the center safe zone UI overlays the top and bottom.
Profile photo
Displayed as a circle at 320×320 but upload at least 320×320 (higher is fine).
How to resize before posting
- Open our resize image for Instagram guide or Image Resizer with
?w=1080&h=1080. - Upload your photo and download the result.
- Optionally compress JPG if the file is still large.
Related tools
- Instagram line break generator for captions
- Aspect ratio checker to verify dimensions
- WebP converter for web-optimized copies
See also: how to fix Instagram feed not refreshing if the app itself is stuck.