Audio Converter — Four Formats, Zero Uploads

What a four-minute song weighs in MP3, WAV and M4A

The Audio Converter changes files between MP3, WAV, M4A and OGG inside your browser tab, so nothing gets uploaded to a server. Here's what the formats mean for a four-minute song — 240 seconds. At MP3 192k you're storing 24 kilobytes per second (192,000 bits divided by 8), so the file lands around 5.8 MB. The same track as 16-bit WAV runs at 44,100 samples per second across two channels, roughly 176 KB per second, coming in near 42 MB. M4A (AAC at about 160k) sits close to 4.8 MB, and OGG lands about the same. Bigger file, more headroom for editing. Smaller file, easier sharing.

One thing to know before you convert: this is re-encoding, not magic. Going from WAV or FLAC into any of these formats is a clean first compression. Going MP3 to M4A compresses an already-compressed file, and each generation costs a little fidelity you never get back. If your source is lossy, pick the target your player actually needs and stop there. And when editing is the endgame, keep a WAV copy of anything you care about.