In Short
In 2026, the ideal social media resolutions are: Instagram Square Post (1080 × 1080 px), Instagram Portrait (1080 × 1350 px), Stories & Reels (1080 × 1920 px), Facebook Feed Post (1200 × 630 px), and YouTube Video Thumbnail (1280 × 720 px under 2 MB).
2026 Social Media Dimensions Reference Table
| Platform | Asset Type | Dimensions (Pixels) | Aspect Ratio |
|---|---|---|---|
| Square Feed Post | 1080 × 1080 px | 1:1 | |
| Portrait Feed Post | 1080 × 1350 px | 4:5 (Most Screen Real Estate) | |
| Instagram / TikTok | Stories & Reels | 1080 × 1920 px | 9:16 |
| Landscape Feed Post | 1200 × 630 px | 1.91:1 | |
| YouTube | Video Thumbnail | 1280 × 720 px | 16:9 (Max 2 MB) |
Frequently Asked Questions
Why is the 1080x1350 portrait format recommended for Instagram?
The 4:5 portrait aspect ratio (1080 × 1350 px) occupies the maximum vertical screen space on mobile phones as users scroll their feeds, generating higher engagement than square photos.