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Audio conversion

Convert WAV to MP3

Convert your .wav files to .mp3 format online. No software to install.

Convert WAV to MP3 now

Pro plan required (from €4.99 / $4.99/month).

How to convert WAV to MP3

1

Upload

Drag and drop your .wav file or click to browse.

2

Choose format

Select MP3 as your output format.

3

Download

Click Convert and download your .mp3 file.

Why convert WAV to MP3?

WAV files are massive — about 10 MB per minute at CD quality. Converting to MP3 compresses audio to roughly one-tenth the size while maintaining quality that is indistinguishable from the original for most listeners at 192-320 kbps. This makes your audio practical for sharing, uploading, streaming, and mobile storage.

WAV vs MP3: technical comparison

WAV (Waveform Audio File Format, introduced in 1991) uses None (raw PCM) or optional IEEE float compression. MP3 (MPEG Audio Layer III, introduced in 1993) uses Lossy (psychoacoustic model + MDCT) compression. WAV browser support: Universal. MP3 browser support: Universal.

What happens to quality?

Converting from WAV (lossless) to MP3 (lossy) will reduce file size significantly, but some quality is permanently discarded during compression. At higher quality settings (80-90%), the visual or audible difference is typically imperceptible. At lower settings, compression artifacts may become noticeable. Always keep your original WAV file as a master copy.

File size impact

A 4-minute WAV song at CD quality (44.1kHz, 16-bit stereo) is approximately 40 MB. As MP3 at 320 kbps: ~9 MB (77% reduction). At 192 kbps: ~5.5 MB (86% reduction). At 128 kbps: ~3.7 MB (91% reduction).

Common use cases

  • Creating portable versions of studio recordings for sharing and distribution
  • Preparing audio for podcast hosting platforms that prefer MP3
  • Converting voice recordings and interviews for email or messaging
  • Building a music library that fits on mobile devices without filling storage
Pro tip

Use LAME VBR V0 (~245 kbps average) for transparent quality that is virtually indistinguishable from the WAV original in blind tests. For podcast and speech content, 128 kbps mono is sufficient and saves significant bandwidth. Always keep the original WAV as a master file.

Why use SquishConvert for WAV to MP3?

Pro plan

Pro plan required (from €4.99 / $4.99/month). No watermarks.

Quick & easy

Create a free account in 10 seconds and start converting immediately. No credit card required.

Where your file goes

Your file is sent over an encrypted connection to our provider CloudConvert, which converts it and deletes it after the conversion, within 24 hours at most. Details in our Privacy Policy.

Works everywhere

Convert files from any device: desktop, tablet, or phone. No software to install, works in any modern browser.

358+ conversions

SquishConvert supports over 358 file conversion combinations across images, documents, audio, and video.

High quality output

Your converted .mp3 file maintains the best possible quality. No unnecessary compression or quality loss.

Audio conversion requires a Pro account. See pricing, from €4.99 / $4.99/month

Frequently asked questions

Is it free to convert WAV to MP3?

No. Audio conversions need a Pro plan (from €4.99 / $4.99/month), with 100 audio or 20 video conversions a month.

How long does it take to convert WAV to MP3?

It depends on the file size and on the queue at our provider. Small files usually take a few seconds.

Is my WAV file safe when converting?

Your file is sent over an encrypted connection to our provider CloudConvert, which converts it and deletes it after the conversion, within 24 hours at most. Details in our Privacy Policy.

What is the maximum file size for WAV to MP3?

Free users can convert files up to 10 MB. Pro users can convert files up to 500 MB.

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