Video Bitrate Calculator

Calculate the required bitrate to hit a target file size for video encoding.

JavaScript Disabled: This calculator requires JavaScript to process inputs interactively.

Manual Calculation Formula:
Total Bitrate (kbps) = (Target File Size in MB * 8192) / Duration in Seconds
Video Bitrate = Total Bitrate - Audio Bitrate

Duration (H:M:S)

Target File Size (MB)

Audio Bitrate (kbps)

Target Video Bitrate

kbps

Total Bitrate

Assumptions

1 Megabyte (MB) = 8,192 Kilobits (kb)
Constant bit rate (CBR) or average bit rate (ABR) encoding.
Container overhead (MP4/MKV headers) is negligible for long videos, but may push small videos slightly over the target size.