

Most video content you see on TV, as well as computers and mobile devices, is displayed in this aspect ratio.


In fact, the standard aspect ratio for videos is actually 16:9, also known as the widescreen aspect ratio. We’ll also go over which aspect ratio works best for particular social media platforms.įor instance, TikTok requires videos with a 9:16 aspect ratio, and for YouTube, it’s 16:9. In this article, we’ll show you how to change the aspect ratio using iMovie on different devices. This is key because if you don’t change a video’s aspect ratio, the platform where you post the video might automatically crop or stretch it improperly. Once you use iMovie to change a video’s aspect ratio, you can upload it to various social media platforms. One of the best apps you can use to change a video file’s aspect ratio is iMovie, a video editing app designed for macOS and iOS devices.
