Video Bitrate Calculator

This tool calculates the video and audio bitrate you need based on duration and target size, using a similar procedure to AUTO-REZ™ Technology. This is useful for manually encoding files for Discord and other websites using your own settings and encoding tools.

Target size:

MiB

Safety margin:

/1.00

True target size:

MiB

Physical media size:

Output container: ISOBMFF (MP4) Matroska/WebM Idealized (no overhead)

Output video FPS:

FPS

FFmpeg-compatible video duration:

HH:MM:SS.SS or S.SS

An FFmpeg-compatible video duration is either a number of seconds or HH:MM:SS. 30, 68.69, 00:13:37.2, 01:30:00, and 00:00:15 are all FFmpeg-compatible. 03:32 is not FFmpeg compatible, the right way to write that is 00:03:32.

Output audio codec:
FFmpeg AAC (twoloop) Fraunhofer/Apple AAC Opus (libopus)

Source audio channels:

Display units: Bits per second Kilobits per second Megabits per second

Results

Total bitrate: ???

Video bitrate: ???

Audio bitrate: ???

Overhead bitrate: ???

Suggested audio channels: ???