Instagram Post Size: 1080×1440 px (3:4) or Wider
Instagram keeps feed photos 1080 px wide at any aspect ratio between 1.91:1 and 3:4, so posts range from 1080×566 to 1080×1440 px. Upload at least 1080 px wide.
Instagram post specs
| Spec | Value |
|---|---|
| Size | 1,080×1,440 px |
| Aspect ratio | 3:4 (tallest) |
| Minimum | 320×168 px |
| Formats | JPG, PNG |
Verified Oct 16, 2026against Instagram Help: photo sizes and aspect ratios
- Photos outside 1.91:1 to 3:4 are cropped to fit.
- Meta’s Ads Guide still recommends 4:5 (1440×1800) for feed ads.
- No Instagram Help page documents the profile grid showing 3:4 thumbnails.
Changelog
- : Checked against official source.
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