Compressed Audio Size Estimator
Estimate audio file size from bitrate and duration.
Your inputs
Calculation results
Formula & assumptions
Size = bitrate × seconds / 8; variable bitrate and metadata can change actual size.
Values use the specified units. Calculations use floating-point arithmetic. Check input measurements and formula assumptions before applying the result.
Compare your scenarios
Save up to five results to compare changes side by side. Scenarios stay in this tab until you clear or reload it.
Using Compressed Audio Size Estimator
Estimate audio file size from bitrate and duration.
- Enter bitrate, duration, tracks using the units printed under each field.
- Choose Calculate, or enable live updates. Review the result labels and formula assumptions.
- Save scenarios to compare up to five variations, then copy the report or download JSON or CSV.
Example
Bitrate: 192 kilobits per second Duration: 5 minutes Tracks: 12 tracks Per track · MB: 7.2 All tracks · MiB: 82.397461
Questions & answers
What does Compressed Audio Size Estimator calculate?
Estimate audio file size from bitrate and duration.
Which units should I enter?
Bitrate uses kilobits per second. Duration uses minutes. Tracks uses tracks. Convert values to these units before calculating.
Which formula does it use?
Size = bitrate × seconds / 8; variable bitrate and metadata can change actual size.
What does the included example show?
Bitrate: 192 kilobits per second; Duration: 5 minutes; Tracks: 12 tracks. Result: Per track · MB = 7.2; All tracks · MiB = 82.397461.
Can I compare different settings?
Yes. Save a scenario, change the inputs and save another result. Up to five scenarios are compared in this tab; they disappear when you reload or leave.
Can I export the calculation?
Copy the JSON report or download JSON and CSV with inputs, result labels and numeric values. Processing uses local JavaScript; no calculation request is sent to our server. Displayed values use up to 10 significant digits; exports retain JavaScript numeric precision.
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