Free Audio Tools
Audio Bitrate Calculator
Calculate the average audio bitrate available inside a duration and file-size limit.
What this tool does
The calculator works backward from bytes and duration to an average kilobits-per-second budget.
Calculate the average audio bitrate available inside a duration and file-size limit.
The calculator works backward from bytes and duration to an average kilobits-per-second budget.
Use the tool
Calculate a target audio bitrate
Enter target size and complete duration.
File limit and duration
Live result
133.33 kbps
Available average bitrate
- Duration
- 3,600 sec
- Data budget
- 60 MB
- Safer working target
- 126 kbps
Reserve headroom for container metadata and artwork.
How to use it
Three quick steps
- 1Enter target size and complete duration.
- 2Use the result as an encoding budget with appropriate overhead headroom.
- 3Verify the result in its real production context. Container overhead, metadata, artwork, and variable bitrate change final size.
Worked example
Example: Audio Bitrate Calculator
Find the bitrate available for a 60-minute episode limited to 60 MB.
FAQ
Questions about the audio bitrate calculator
Practical details about using the tool and understanding its result.
Keep working
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