Fast Utility Calculators

File size calculator for audio

Estimate uncompressed PCM size or compressed export size before you export, upload, or hand files off.

Tool

Run the tool

Add your inputs below and Ubetoo will return the result, output, or generated file in the result panel.

Sizing workflow

Use PCM mode for WAV/AIFF-style storage math, or estimate compressed exports from bitrate and duration.

Length of the audio file in seconds.

Used only for compressed estimates like MP3, AAC, or Opus.

Adds a small allowance for file/container overhead on compressed exports.

Reset

What you can do here

Common ways this tool gets used

  • 3 minutes, 44.1 kHz, 16-bit stereo -> about 31.75 MB
  • 10 minutes at 192 kbps -> compressed estimate

How to use this tool well

  • PCM mode is for WAV, AIFF, and other raw-audio planning.
  • Compressed mode is useful when you only know duration and target bitrate for MP3, AAC, Opus, or similar delivery formats.