How is audio file size calculated for uncompressed formats?

Uncompressed audio size equals sample rate multiplied by bit depth multiplied by channels multiplied by duration in seconds. For example, a 3-minute stereo track at 48kHz/24-bit calculates to approximately 49.5 MB.

What is the difference between WAV and FLAC file sizes?

WAV is uncompressed, storing exactly what is recorded without reduction. FLAC uses lossless compression, typically reducing file size by 40 to 60 percent while preserving perfect audio quality, though encoding and decoding require additional processing time.

Which sample rates does the calculator support?

The tool supports sample rates from 44.1 kHz (CD quality) up to 192 kHz for high-resolution audio, covering common video and professional recording standards.

Can I calculate sizes for MP3 bitrates other than the default?

The calculator provides preset results for common MP3 formats, including a 320 kbps option. Specific bitrate adjustments are not configurable within the current interface.

Music & AudioTool Review

Audio File Size Calculator

Provided byBchillMixbchillmix.com

The audio file size calculator computes sizes for WAV, AIFF, FLAC, and MP3 based on duration, sample rate, bit depth,...

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About this tool

What Audio File Size Calculator does

The Audio File Size Calculator on BchillMix estimates storage needs for uncompressed and compressed audio formats. Users input duration and technical settings—sample rate, bit depth, and channels—to see instant size results for WAV, AIFF, FLAC, and MP3. The tool is designed to help creators plan project storage by showing how different encoding choices affect final file weight, with calculations displayed side-by-side for quick comparison.

Step by step

How to use the BchillMix Audio File Size Calculator

1
Enter the audio duration in minutes using the Duration field
2
Select sample rate, bit depth, and channel configuration from the dropdown menus
3
Click Calculate to view estimated sizes for WAV, AIFF, FLAC, and MP3 formats
4
Review the instant results displayed in megabytes for each format to compare storage impact
5
Use the Why Use This Tool section for explanations of uncompressed versus compressed tradeoffs

Is it right for you

Best for

Content creators and producers who need to estimate storage requirements before recording or exporting, particularly when comparing how sample rate, bit depth, and format choices affect file size.

Limitations

Results are estimates based on standard PCM calculations
No unit switching beyond megabytes displayed on page
Compressed format bitrates are preset and not user-adjustable

Questions

Audio File Size Calculator FAQ

How is audio file size calculated for uncompressed formats?: Uncompressed audio size equals sample rate multiplied by bit depth multiplied by channels multiplied by duration in seconds. For example, a 3-minute stereo track at 48kHz/24-bit calculates to approximately 49.5 MB.
What is the difference between WAV and FLAC file sizes?: WAV is uncompressed, storing exactly what is recorded without reduction. FLAC uses lossless compression, typically reducing file size by 40 to 60 percent while preserving perfect audio quality, though encoding and decoding require additional processing time.
Which sample rates does the calculator support?: The tool supports sample rates from 44.1 kHz (CD quality) up to 192 kHz for high-resolution audio, covering common video and professional recording standards.
Can I calculate sizes for MP3 bitrates other than the default?: The calculator provides preset results for common MP3 formats, including a 320 kbps option. Specific bitrate adjustments are not configurable within the current interface.

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