Bitrate Calculator
Calculate average bitrate from size and duration.
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Calculate average bitrate
Bitrate connects media quality, file size and duration. Enter file size and duration to calculate the average bitrate in Mbps and kbps. It is useful for video exports, podcast planning, streaming estimates and checking whether a file matches a delivery target.
Size to bitrate
The calculator divides file size in bits by duration. Variable bitrate files can have different peaks even when the average looks right.
Frequently asked questions
Does this work for video and audio?
Yes. It calculates average bitrate from any file size and duration.
Why are Mbps and kbps both shown?
Video often uses Mbps, while audio often uses kbps.
Does it include container overhead?
It uses total file size, so overhead is included in the average.