Audio Storage Calculator

Estimate how many songs fit on a device based on your available storage, average song length, and bitrate.

How to use the Audio Storage Calculator

  1. Enter your valuesEnter how much storage you have (MB, GB or TB) and your average track length.
  2. Read the results instantlySee how many tracks and how many hours fit in seven formats from MP3 128 to hi-res WAV.
  3. Copy or sharePress the copy icon on any result card, or use Copy link to these values — the page URL stores your inputs so you can bookmark or send the exact calculation.

About the Audio Storage Calculator

The Audio Storage Calculator shows how much music or audio fits on a phone, card or drive — for seven formats side by side. Compare MP3 at 128/192/320 kbps, AAC 256, FLAC and uncompressed WAV so you can choose a format for your library and a device that is big enough.

Storage is counted in decimal units as drive makers label them (1 GB = 1,000,000,000 bytes), with a note on why operating systems report slightly less.

How the Audio Storage Calculator works

Tracks = capacity ÷ (bitrate ÷ 8 × track seconds); hours = capacity ÷ (bitrate ÷ 8) ÷ 3600. FLAC is estimated at about 850 kbps average for CD-quality music (it varies by track), 24/96 WAV at 4,608 kbps and CD-quality WAV at 1,411.2 kbps.

tracks = capacity ÷ (bitrate/8 × minutes × 60)

What people use it for

Choosing a phone

How much music 64 or 128 GB holds.

Backups

Plan an archive drive.

Car USB sticks

Fit a playlist.

Library format choice

Decide between FLAC and MP3.

Tips for the best results

  • 320 kbps MP3 uses 2.5× the space of 128 kbps with little audible difference for most listeners.
  • FLAC sizes vary by track; quiet acoustic music compresses better.
  • Leave 10–15% free space on any device.

Common problems & fixes

My drive shows less spaceThe OS reports in GiB; decimal GB are about 7% larger.
FLAC count is offReal FLAC bitrates range roughly 500–1,100 kbps.

Quick facts

FormatsMP3 128/192/320 · AAC 256 · FLAC · WAV 16/44.1 · WAV 24/96
UnitsDecimal MB/GB/TB

Frequently asked questions

How many songs fit in 64 GB?

About 19,000 at 128 kbps MP3 (3.5 min each) or about 1,700 as CD-quality WAV.

Which format is best for storage?

Opus/AAC for small; FLAC for lossless quality.

Is this exact?

It's an average-based estimate — real libraries have songs of varying length and bitrate, so your actual count will vary somewhat.

Your audio never leaves your device

This tool runs entirely in your browser using the Web Audio API. Nothing is uploaded, stored or shared — there is no server to send your file to, so it works offline once the page has loaded.

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