Posting the wrong image size to Instagram means awkward cropping, blurry uploads, or black bars around your content. Each Instagram format has specific dimension requirements. Here's the quick reference and how to resize perfectly.
Instagram Image Dimensions
| Format | Size | Aspect Ratio |
|---|---|---|
| Square Post | 1080 × 1080 | 1:1 |
| Portrait Post | 1080 × 1350 | 4:5 |
| Landscape Post | 1080 × 566 | 1.91:1 |
| Story / Reel | 1080 × 1920 | 9:16 |
How to Resize for Instagram in 3 Steps
- Open the Image Resizer
- Click the "Instagram (1080×1080)" preset under the upload area
- Click Resize, then download
Pro tip: Always export at 1080px on the longest side. Uploading larger won't improve quality — Instagram compresses everything to 1080px anyway.