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Instagram Portrait Photo Resize
An Instagram portrait post is a feed image uploaded at the 4:5 ratio (1080×1350px) — the tallest portrait ratio Instagram supports. Portrait posts occupy roughly 30% more feed space than square posts, holding the viewer's attention longer during mobile scrolling and boosting engagement. They are especially suited for people, products, and food photography with vertical compositions. The profile grid crops them to a center-based square. This tool crops your image to 1080×1350px and saves it as JPG instantly.
How to use
Adjust position
Adjust the position in the preview.
Save
Run resize and save as JPG.
When to use this tool
Portrait photos occupy more feed real estate, making them effective for boosting engagement.
Posting a portrait or product photo in the optimal vertical ratio
Creating posts that take up maximum feed space for better visibility
Matching the exact 4:5 ratio to prevent Instagram auto-cropping
Instagram Portrait Post Spec Guide
Recommended sizes as of 2025. The 4:5 ratio is the tallest portrait ratio Instagram supports.
| 1080 × 1350px |
| Aspect ratio 4:5 |
| File format: JPG, PNG |
| 4:5 is the maximum portrait ratio supported in the Instagram feed. |
| Portrait posts take up roughly 30% more feed space than square posts. |
| The feed grid preview crops to a center-based square. |
| Takes up the most screen real estate in the feed. |
| 4:5 ratio holds attention longer during mobile scrolling. |
| No UI overlaps the bottom, so the full frame is usable. |
| Maximum file size: 30MB (photos) |
| Supported formats: JPG, PNG |
| Recommended resolution: 1080px width or above |
FAQ
What is the tallest ratio Instagram supports for feed posts?
Instagram supports up to 4:5 (1080×1350px) for feed posts. Taller images will be auto-cropped.
Why are portrait posts better than square posts?
Portrait posts occupy more vertical space in the feed, keeping the viewer's attention longer while scrolling.
What is the maximum file size for a portrait post?
Photos can be up to 30MB. JPG and PNG are supported, with a recommended minimum width of 1080px.
How do portrait photos appear in the profile grid?
The profile grid crops them to a center-based square preview. The full 4:5 image is visible when the post is opened.
Can I use the portrait ratio in carousel posts?
Yes, setting the first image to 4:5 applies the same ratio to all slides. Use 1080×1350px for every image to keep them consistent.