DJ Audio Utility
WAV vs FLAC File Size Comparison Calculator
Compare exact disk savings between uncompressed WAV and lossless FLAC to decide whether to convert your archive.
Comparison Presets:
60%
60% of PCM size = 40% smaller than uncompressed WAV (typical compression range is 50% to 70%).
WAV vs FLAC Comparison
Uncompressed WAV
71.44 MB (68.13 MiB)
71,442,000 bytes
Lossless FLAC (Estimate)
42.87 MB (40.88 MiB)
40% smaller than WAV
Space Saved
28.58 MB (27.25 MiB)
Zero loss in audio fidelity
Formulas & Worked Examples
Calculations are performed browser-side with exact mathematical formulas without intermediate rounding. Below are verified worked examples based on standard audio engineering definitions:
Standard Club Track (5 Minutes, 16-bit / 44.1 kHz)
Parameters: 300s, 44,100 Hz, 16-bit stereo, assumed 60% FLAC ratio
WAV: 52,920,000 bytes (52.92 MB) | FLAC (60%): 31,752,000 bytes (31.75 MB)
Result: Space saved: 21,168,000 bytes (40% smaller than uncompressed WAV).
24-bit / 44.1 kHz Lossless Track (6 Minutes)
Parameters: 360s, 44,100 Hz, 24-bit stereo, assumed 65% FLAC ratio
WAV: 95,256,000 bytes (95.26 MB) | FLAC (65%): 61,916,400 bytes (61.92 MB)
Result: Space saved: 33,339,600 bytes (35% smaller than uncompressed WAV).
Technical Notes & Storage Assumptions
- Decimal (SI) vs Binary (IEC) Notation: Storage manufacturers and file systems calculate capacity differently. In decimal (SI), 1 MB = 1,000,000 bytes and 1 GB = 1,000,000,000 bytes. In binary (IEC), 1 MiB = 1,048,576 bytes and 1 GiB = 1,073,741,824 bytes. Operating systems like Windows report binary capacities labeled as MB/GB, while drive packaging uses decimal.
- Lossless Audio & Container Overhead: Lossless compression (FLAC) preserves decoded audio bit-for-bit. However, re-encoding lossy MP3 files into FLAC or WAV inflates file size several times over without restoring high frequencies discarded during lossy compression.
- Compression & Artwork Assumptions: Stated FLAC compression ratios (~60–65% of PCM) and cover art allowances (+1.5 MB/track) are estimated assumptions, not guarantees. Real-world FLAC file sizes vary with audio frequency density, and embedded artwork size depends on resolution and compression.
- Drive Capacity Realities: A nominal 128 GB drive equals approximately 119.2 GiB before filesystem overhead: this is unit conversion, not lost capacity. Filesystem structures and existing files reduce free space separately. A 132.74 GB library exceeds nominal 128 GB capacity; compare actual free space on a larger drive before copying.
- Calculator Settings vs Downloader Entitlements: General calculator options (including 24-bit PCM, 96 kHz, and multi-channel configurations) are provided for audio engineering calculations. Downloading capabilities from Beatport depend on your account tier and the resolution supplied by the record label.