Filesize Calculator

Filesize Calculator is a command-line utility you can use to quickly find out the size of a video before generating it using a specialized software product, based on its bit rate and duration.

It comes in handy if you're preparing to convert large-sized videos to make sure there's plenty of unoccupied storage to save the new items, whether you want to keep them on the hard disk or copy them to removable devices.

The tool features a user-friendly syntax for a command-line application, making it accessible even to those less familiarized with this type of interface.

Once launched, you are prompted for the audio and video bit rate (in kilobytes per second), which can be entered on the same line and separated by a blank character. If you want to indicate the overall bit rate, make sure to set the one value as 0.

After confirming this line by pressing the Enter key, you can enter the video duration in hours, minutes and seconds by following the format displayed (hh mm ss).

The new file size is instantly calculated in the next step and shown in megabytes and gigabytes. Afterward, Filesize Calculator asks you if you want to restart the task or to exit.

The entire tool's packed in a single .exe file that can be dropped in a custom directory on the disk or stored on a USB flash drive to directly run it on any machine without setup. It doesn't need DLLs or other components to run, create files on the disk without asking for permission, or add new entries to the system registry.

It calculated information swiftly in our tests and remained stable throughout its runtime, without freezing, crashing or prompting errors. CPU and RAM usage was minimal. Thanks to its approachable CLI syntax, Filesize Calculator can be easily used for calculating file sized based on audio and video bit rate, along with video duration.