Video Aspect Ratio Calculator
Enter a width in pixels to instantly calculate the correct height for all common aspect ratios.
Common Aspect Ratios
16:9 is the standard for YouTube, streaming, and most modern displays. 9:16 is for vertical content on TikTok, Instagram Reels, and YouTube Shorts. 4:3 is the classic TV format. 21:9 is ultrawide cinematic. 1:1 is square, used on Instagram posts. Choosing the right aspect ratio ensures your video fills the target screen without letterboxing or cropping.
BeatSync PRO supports all common aspect ratios for music video exports, with automatic letterbox detection and smart cropping.
Try BeatSync PRO