Social media video aspect ratios determine how your content displays across platforms like Instagram, TikTok, YouTube, and Facebook. The most common formats are 9:16 for vertical short-form content (Reels, Shorts, TikTok) and 16:9 for horizontal long-form videos (YouTube). Using the correct aspect ratio ensures your videos display without cropping or black bars, maximizing engagement and viewer experience. This comprehensive guide covers exact specifications for every major platform in 2026, helping creators optimize their content for maximum visibility and grow their Instagram audience and presence across all social channels.
