Instagram Post Size 2026: Official Measurements and Complete Dimension Guide
· 4 min
Why does the post size on Instagram matter so much?
Posting an image or video with the wrong dimensions on Instagram results in unwanted cropping, loss of quality, and — worse — less engagement. The Instagram algorithm prioritizes high-quality visual content, and posts with the correct dimensions receive significantly more organic reach.
In 2026, Instagram supports multiple formats with different technical specifications for each type of content. This guide gathers all the updated official measurements so you never publish a cropped or pixelated post again.
Official Instagram Sizes in 2026
Feed — Square Post
- Recommended dimension: 1080 x 1080 pixels
- Aspect ratio: 1:1
- Format: JPG or PNG
- The square format remains the most versatile and works well on all devices
Feed — Vertical Post (Portrait)
- Recommended dimension: 1080 x 1350 pixels
- Aspect ratio: 4:5
- Format: JPG or PNG
- Takes up more screen space on mobile, generating longer viewing time and engagement
Feed — Horizontal Post (Landscape)
- Recommended dimension: 1080 x 566 pixels
- Aspect ratio: 1.91:1
- Format: JPG or PNG
- Less recommended as it occupies less screen space. Use only when the content requires a widescreen format
Stories and Reels
- Recommended dimension: 1080 x 1920 pixels
- Aspect ratio: 9:16
- Format: MP4 (video) or JPG/PNG (image)
- Stories Duration: up to 60 seconds per slide
- Reels Duration: up to 90 seconds
- Keep important elements in the safe zone (center), avoiding the top and bottom edges where the interface and CTA are located
Carousel
- Recommended dimension: 1080 x 1080 (square) or 1080 x 1350 (vertical)
- Aspect ratio: 1:1 or 4:5
- Limit: up to 20 slides per carousel
- The first image defines the aspect ratio of all slides. If the first slide is 4:5, all subsequent slides will be displayed in that ratio
Profile Picture
- Recommended dimension: 320 x 320 pixels (minimum)
- Aspect ratio: 1:1 (circular)
- Use an image with a centered face or a clean logo, without small texts
Reels and IGTV Cover
- Recommended dimension: 1080 x 1920 pixels
- Aspect ratio: 9:16
- Remember that in the feed the cover appears cropped in 4:5, so center the title
Summary Table of Dimensions
| Format | Dimension (px) | Aspect Ratio |
|---|---|---|
| Square Feed | 1080 x 1080 | 1:1 |
| Vertical Feed | 1080 x 1350 | 4:5 |
| Horizontal Feed | 1080 x 566 | 1.91:1 |
| Stories | 1080 x 1920 | 9:16 |
| Reels | 1080 x 1920 | 9:16 |
| Carousel | 1080 x 1080 or 1350 | 1:1 or 4:5 |
| Profile Picture | 320 x 320 | 1:1 |
| Reels Cover | 1080 x 1920 | 9:16 |
Tips to Maximize Visual Quality
Resolution and Compression
Instagram automatically compresses all uploaded images. To minimize quality loss, follow these practices:
- Export images in JPG with 95% quality or PNG without compression
- Use the space