Instagram Image Sizes 2026: The Complete Guide
Instagram silently adjusts its image dimensions every year — and uploading the wrong size means blurry, cropped, or letterboxed posts. In 2026, Instagram still recommends 1080px wide for all feed posts, but the optimal portrait ratio for maximum feed space remains 4:5 (1080×1350px). Stories and Reels continue to use the full 9:16 vertical at 1080×1920px. This guide covers every format with exact pixel dimensions, aspect ratios, and the file size limits Instagram actually enforces — so your photos and graphics always look sharp.
Quick Answer
Instagram silently adjusts its image dimensions every year — and uploading the wrong size means blurry, cropped, or letterboxed posts. In 2026, Instagram still recommends 1080px wide for all feed posts, but the optimal portrait ratio for maximum feed space remains 4:5 (1080×1350px).
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Step-by-Step Guide
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Feed post — square
1080 × 1080px at 1:1 ratio. The safest format for grid consistency. Instagram will not crop it on any device.
Feed post — portrait (recommended)
1080 × 1350px at 4:5 ratio. Takes up the most vertical space in the feed — gets more engagement than square or landscape. Maximum allowed portrait ratio.
Feed post — landscape
1080 × 566px at 1.91:1 ratio. Suits wide shots and banners. Instagram crops to this ratio if you upload anything wider.
Instagram Stories & Reels
1080 × 1920px at 9:16 ratio. Keep all important text and faces within the central 1080 × 1420px safe zone — the top and bottom 250px are covered by the UI (username bar and action buttons).
Carousel posts
Same dimensions as a single feed post: 1080 × 1080 (square), 1080 × 1350 (portrait), or 1080 × 566 (landscape). All slides in a carousel must use the same aspect ratio — mix them and Instagram picks one and crops the rest.
Profile photo
Displayed at 110 × 110px on mobile, 180 × 180px on desktop. Upload at least 320 × 320px so it stays sharp at all sizes. Instagram crops to a circle, so keep faces and logos centred.
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Pro tip
Pre-optimizing images before uploading to a platform gives you more control than relying on the platform's automatic (and often aggressive) compression.
Format & File Size Comparison
Same 1080×1080px photo processed four ways
| Format | Quality | File Size | Notes |
|---|---|---|---|
| PNG (original) | Perfect | 4.2 MB | No compression — too large for web |
| Compressed PNG | Visually identical | 1.1 MB | −74% — transparency preserved |
| JPG (85% quality) | Excellent | 310 KB | −93% · Best for photos |
| WebP (85%)BEST | Excellent | 205 KB | −95% · Recommended for web |
Based on a 1080×1080px photo. Results vary by image content and complexity.
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