The Aspect Ratio Calculator converts between different aspect ratios and calculates dimensions. Enter your desired ratio (e.g., 16:9) and one dimension (width or height), and the tool calculates the matching dimension automatically.
This is essential for video editors who need to resize content for different platforms. For example, convert 16:9 YouTube videos to 9:16 TikTok vertical format or 1:1 Instagram square format.
Frequently Asked Questions
Q: What is the difference between 16:9 and 4:3?
What is the difference between 16:9 and 4:3? 16:9 is widescreen (standard for HDTV and YouTube). 4:3 is the older "square" TV format. 16:9 is 33% wider than 4:3.
Q: How do I convert 16:9 video to 9:16 for TikTok?
How do I convert 16:9 video to 9:16 for TikTok? You need to crop the center portion or add blur/padding above and below. The tool calculates the correct dimensions for either approach.
Q: What aspect ratio should I use for YouTube Shorts?
What aspect ratio should I use for YouTube Shorts? YouTube Shorts use 9:16 (vertical), the same as TikTok and Instagram Reels. Full resolution is 1080×1920 pixels.
Q: What is the cinema aspect ratio?
What is the cinema aspect ratio? Standard cinema ratios are 1.85:1 (Academy, used in most Hollywood films) and 2.35:1 (Cinemascope, for epic widescreen).