Video bitrate calculator
Calculate the ideal video bitrate for a target file size. Enter duration and target size to get the recommended bitrate.
Target file size
Video duration
Audio bitrate
Recommended settings
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What this tool does
A pure calculator that tells you what video bitrate to use based on your target file size, video duration, and audio bitrate. No video processing — just math. Useful before compressing or exporting video.
Frequently Asked Questions
What is bitrate?
Bitrate is how many bits of data are used per second of video. Higher bitrate = better quality but larger files.
How do I use this number?
Use the calculated bitrate in your video editor's export settings or in the MediaBrew Compress Video tool.
Why does audio bitrate matter?
The total file size budget is split between video and audio. Higher audio bitrate leaves less room for video quality.
What bitrate do I need for 1080p?
Roughly 5,000-8,000 Kbps for H.264. For 4K, aim for 15,000-30,000 Kbps.
Last updated: 2026-07-25