How to convert WAV to MP3
WAV stores audio uncompressed. It is the format of field recorders, audio editors and sample libraries, but it is big: one minute at CD quality is about 10 MB. To send a demo, upload a podcast or listen on your phone, MP3 is far more practical.
This converter compresses your WAV to MP3 while keeping quality high.
Step by step
- Click Select file and choose the .wav (up to 50 MB and 10 minutes).
- Check that Convert to shows MP3.
- Click Convert audio to MP3.
- Download the MP3, and keep the original WAV if you will keep editing.
File size and sound
The MP3 is encoded at high-quality variable bitrate, around 190 kbps on average. Compared with a CD-quality WAV at 1,411 kbps, the result is usually about seven times smaller, and the difference is hard to hear in normal listening.
MP3 is lossy. If you are still mixing or editing, work with the WAV and only convert the final version to MP3.
For podcasts, voice recordings and demos sent to collaborators, MP3 at this quality is a sensible delivery format: small enough for email and messaging apps, and accepted by every hosting platform.
Limits and details
Recordings up to 10 minutes and 50 MB are accepted. A 50 MB stereo CD-quality WAV lasts about five minutes, so a longer file may hit the size limit before the length limit.
The first audio track is converted. MP3 supports at most 48 kHz, so recordings at 96 or 192 kHz are converted to a compatible sample rate. Tags stored in the WAV are not copied to the MP3.
Frequently asked questions
- How much smaller will it be?
- Usually about seven times smaller than a CD-quality WAV.
- Will I hear the quality loss?
- At the bitrate used, the difference is hard to hear in normal listening.
- Why is my 8-minute WAV rejected?
- It probably exceeds 50 MB. A CD-quality WAV takes about 10 MB per minute.
- Can I convert the MP3 back to WAV and recover quality?
- No. Converting to a lossless format does not restore what was lost in compression.
