What Is the Instagram Portrait Format?
The 4:5 portrait format at 1080×1350 pixels is Instagram's tallest allowed post format for feed images. Because it takes up 25% more vertical screen space than a square (1:1) post, portrait photos naturally draw more attention as users scroll. Explore all our free Instagram Tools. If you need wide posts, check our Instagram Landscape Resizer, or format stories with our Instagram Story Resizer.
Portrait vs. Square — Which Should You Use?
| Feature | Portrait (4:5) | Square (1:1) |
|---|---|---|
| Dimensions | 1080 × 1350 px | 1080 × 1080 px |
| Feed Real Estate | More vertical space (25% taller) | Standard |
| Grid Thumbnail | Cropped to square 1:1 | Square |
| Best For | Portrait photos, product shots, text posts | Logos, landscapes, groups |
Instagram Portrait Size Specifications
| Property | Specification |
|---|---|
| Recommended Size | 1080 × 1350 px |
| Aspect Ratio | 4:5 |
| Minimum Size | 320 × 400 px |
| Recommended Format | JPEG (sRGB) |
| Max File Size | 8 MB |