PCM WAV size calculator
Estimate uncompressed PCM audio data size.
How to use the PCM WAV size calculator
What does the PCM WAV size calculator do?
Estimate uncompressed PCM audio data size; It applies this page-specific rule: PCM bytes equal sample rate × channels × bits per sample × seconds, divided by eight.
Which inputs does this calculator use?
To estimate uncompressed pcm audio data size, enter Sample rate (Hz), Channels, Bits per sample, Duration (seconds); keep every value in the same example; select Calculate when the values are ready; Start with a familiar case covered by this rule - This estimates uncompressed sample data for a WAV recording - so the expected result can confirm the settings.
How should the calculator result be read?
For a result intended to estimate uncompressed pcm audio data size, this estimates uncompressed sample data for a WAV recording; read duration (seconds) together with the original sample rate (hz) rather than as an isolated answer, and confirm that its units or structure match the intended use.
What calculation does this use?
When the goal is to estimate uncompressed pcm audio data size, PCM bytes equal sample rate × channels × bits per sample × seconds, divided by eight.
Why might a real result differ?
When using the page to estimate uncompressed pcm audio data size, the small WAV header, metadata chunks, alignment, and compressed WAV codecs are excluded.
Limits and accuracy
When using this calculator to estimate uncompressed pcm audio data size, the small WAV header, metadata chunks, alignment, and compressed WAV codecs are excluded; the result is an estimate unless every source value is known; codecs, metadata, overhead, and variable bitrates can change an actual file; keep sample rate (hz) until the output has been checked in its intended destination. For a repeatable check when you need to estimate uncompressed pcm audio data size, record Sample rate (Hz) alongside the final output and selected options.
How pcm wav size calculator works
PCM bytes equal sample rate × channels × bits per sample × seconds, divided by eight.
This estimates uncompressed sample data for a WAV recording.
The small WAV header, metadata chunks, alignment, and compressed WAV codecs are excluded.
Frequently asked questions
What calculation does this use?
PCM bytes equal sample rate × channels × bits per sample × seconds, divided by eight.
Why might a real result differ?
The small WAV header, metadata chunks, alignment, and compressed WAV codecs are excluded.
Are these values uploaded?
No. The calculation runs in this browser tab.