Bitrate Calculator Video Bitrate Calculator Final Size: MBytes KBytes Length: :: Audio Bitrate: kiloBits/sec kiloBytes/sec Total MBytes Total KBytes   Video Bitrate: kiloBytes/sec kilobits/sec How to use the Bitrate Calculator Enter your desired final file size.  Enter your video's length in the length fields. If you only know how many minutes the video is, simply enter that in the minutes field. If you are including audio, enter the audio's bitrate in either kiloBits or kiloBytes per second, or alternatively the Total MegaBytes or Total kiloBytes. Hit “Calculate”. The Video Bitrate kilobits per second field should be used in HandBrake's 'Avg Bitrate (kbps)' field.