Useful online tools:
- Video File Size Calculator (by format). https://www.omnicalculator.com/other/video-size
- Resize Video - Aspect Ratio Converter - Online, VEED.IO. https://www.veed.io/tools/resize-video/resize-mp4
- Video Space Calculator (Free Video File Size Calculator 2024). https://proactivecreative.com/video-space-size-calculator/