Here are the steps to resize a video using Handbrake:

Start Handbrake and open the video file you want to resize or downscale. Handbrake offers many presets for you to choose from. If you don’t want to use any of the presets, you can choose the custom dimensions or resolution by clicking on the Dimensions tab.


resize or change resolution of videos in windows - handbrake

Input the desired width and height values, making sure that you maintain the aspect ratio so that the resulting video is not stretched or skewed. To calculate the dimensions while maintaining the aspect ratio, you can visit https://calculateaspectratio.com

Here is a screenshot from https://calculateaspectratio.com