WAV to MP3 Converter

Online Converter: Convert audio from WAV into MP3 format

Engine updated: October 11, 2026

Your WAV file

Conversion Configuration

Private by default · files deleted in 24hCapterra Best Ease of Use 2025

Start Conversion

You may help others to find this website - Share your experience!

Convert WAV to MP3 from your AI agent

Ask your agent: “Convert recording.wav to MP3 with Conversion Tools.”
It runs this same converter, so you get the same result
Right from your workflow, no browser needed

Connect it to:

Set up your agent

Need a different result? Build your own converter with AI

Describe the result you want in plain words, no coding
Other columns, a different layout, or a format we don't list
Test it on your own file before you use it
Free to build and test, then runs on your plan's limits

Try AI Converter Studio

Convert WAV audio to MP3 online. Upload a WAV file, choose a bitrate, and download an MP3 that is much smaller than the original and plays on virtually every phone, computer, car stereo and music app.

WAV is the format recorders, audio editors and music software use for full-quality audio. That quality makes WAV files large: about 10 MB for every minute of CD-quality stereo sound. MP3 is made for listening and sharing, and stores the same recording in a fraction of the space.

How to Convert WAV to MP3

Upload your WAV file: drag it onto the upload area or click to choose it.
Choose a bitrate, or leave it on Default.
Click "Run Conversion" and download your MP3.

Stereo recordings stay stereo and mono recordings stay mono.

Which Bitrate Should You Choose?

The bitrate sets how much data is used for each second of audio. A higher bitrate keeps more detail and makes a bigger file. The size of an MP3 depends only on the bitrate and the length of the audio:

Default: 128 Kbps for stereo recordings and 64 Kbps for mono. Pick one of the values below if you need a specific bitrate, for example for a podcast host or a size limit.
96 Kbps (about 0.7 MB per minute): voice memos, lectures and other speech when small files matter most.
128 Kbps (about 1 MB per minute): podcasts, audiobooks, interviews and casual music listening.
160 Kbps (about 1.2 MB per minute): a step up for music when you still want small files.
192 Kbps (about 1.4 MB per minute): music for phones, cars and headphones. A good choice for most music.
256 Kbps (about 1.9 MB per minute): music where you want extra detail, for example acoustic or classical recordings.
320 Kbps (about 2.4 MB per minute): the highest MP3 bitrate. Best for music you care about, DJ sets and anything you play on good speakers.

The MP3 size depends on the length of the audio, not on the size of the WAV: a 4-minute song at 192 Kbps is about 5.8 MB, whether the WAV was CD quality or high resolution.

WAV vs MP3

WAV (Waveform Audio File Format) usually stores audio uncompressed. Nothing is thrown away, which makes it the right format for recording, editing and mastering, but the files are big.

MP3 (MPEG Audio Layer III) uses lossy compression: it removes detail that is hard to hear to make the file much smaller. It is the most widely supported audio format, and it is what most players, phones, car stereos and websites expect.

Format Resources

WAVE Audio File Format - Library of Congress
MP3 audio codec guide - MDN Web Docs

Related Converters

MP3 to WAV - Convert MP3 back to WAV for editing or CD burning
WAV to FLAC - Make WAV files smaller without losing any quality
FLAC to MP3 - Convert lossless FLAC to MP3
WAV to Text - Transcribe a WAV recording to text with AI

Frequently Asked Questions

How do I convert WAV to MP3?

Upload your WAV file
Choose a bitrate, or leave it on Default
Click "Run Conversion"
Download your MP3 file

What bitrate is best for WAV to MP3?

For music, choose 192 Kbps or higher. 320 Kbps is the highest MP3 bitrate and keeps the most detail. For speech, such as podcasts, lectures or voice memos, 96 or 128 Kbps is usually enough.

Does converting WAV to MP3 lose quality?

Yes. MP3 is a lossy format, so some detail is removed to make the file smaller. Higher bitrates remove less. If you plan to edit the audio later, keep the original WAV: converting an MP3 back to WAV does not bring back what was removed.

How much smaller is an MP3 than a WAV?

A minute of CD-quality stereo WAV is about 10 MB. The same minute as MP3 is about 1 MB at 128 Kbps and about 2.4 MB at 320 Kbps, so the MP3 is roughly 4 to 11 times smaller.

Is there a file size limit?

Without an account you can convert WAV files up to 10 MB, which is about one minute of CD-quality stereo audio. A free account raises the limit to 20 MB. For full songs, albums or long recordings, see our paid plans.

Can I convert several WAV files to MP3 at once?

Yes. Put the WAV files into one .zip archive and upload it. Every file inside is converted with the bitrate you choose, and you download a .zip with the MP3 files. Converting an archive needs a free account, so sign up and confirm your email first.

Are my files private?

Files are encrypted in transit and at rest. Both the uploaded file and the converted result are deleted automatically after 24 hours, and paid plans can set deletion to 15 minutes or delete on demand. Read more on our security page.

Sign in to work securely with your files. Sign in or Sign up for full access.
Conversion time varies by file size; thank you for your patience.
Limits apply to maximum conversions and file size. See available plans on the Pricing page.
Unregistered users: up to 5 conversions/day, up to 50 conversions/month, and 10 MB per file. Sign up to extend your limits.
Need help converting files? Contact us.