How to resize an image for Instagram portrait post
- Select Choose files and pick your photo, or drop it on the box.
- The tool fills a 1080×1350 frame and trims equally from the longer side, so the middle of your photo stays. The file keeps the format of your original.
- Select Download and upload the result.
About the 1080×1350 size
Instagram portrait posts use a 4 to 5 ratio, commonly published as 1080×1350 pixels at the time of writing. They take more vertical space in the feed than square posts, so they are popular for people and products.
1080×1350 is a 4:5 portrait frame (width divided by height is 0.8) with 1,458,000 pixels, or 1.46 megapixels. A 4:5 frame is close to the shape of a phone photo. A portrait shot taken on a phone keeps most of its area, and a 4:3 landscape photo loses about 40 percent of its width.
What happens to your photo
The table shows how common source images are treated when the tool fills 1080×1350.
| Source | Scaling | Part of the picture kept |
|---|---|---|
| 4000×3000 phone photo | reduced to 45 percent | 60 percent |
| 3024×4032 portrait photo | reduced to 36 percent | 94 percent |
| 1920×1080 screenshot | enlarged 1.25× | 45 percent |
| 1080×1080 square | enlarged 1.25× | 80 percent |
Sources smaller than the frame are enlarged because the output size is fixed, which can look soft. Platforms change their guidance over time, so check Instagram portrait post requirements before you publish.
Tips
- Portrait photos from a phone need almost no cropping, so shoot vertically.
- Keep the subject in the middle two thirds. The feed grid may crop posts to a different shape.
- Want a square instead? Use Instagram square.
- See also: Instagram post size, resize for Instagram story, resize for Pinterest pin, image resizer.
Your photos stay on your device. Nothing is uploaded, and there is no sign-up.