MKV to WAV Converter

Convert MKV to WAV Online

Pull the audio out of an MKV video and save it as an uncompressed WAV file — bit-perfect PCM with no second round of lossy compression, ready for editing, mastering, or archival. MKV containers often carry several audio tracks (different languages, commentary, surround mixes); this converter extracts the audio and writes it to standard RIFF/WAVE, with control over bit depth, sample rate, and channels so the output matches what your editor or DAW expects.

How to Convert MKV to WAV

1. Upload Your MKV File: Drag and drop your file onto the page or click "+ Add Files" to pick it from your computer, Google Drive, or Dropbox.
2. Set the Audio Codec: Open Advanced Options and choose the WAV bit depth under Audio Codec — PCM 16-bit Little Endian for CD-quality, or PCM 24-bit / 32-bit Little Endian to preserve studio headroom.
3. Adjust Sample Rate and Channels: Leave Audio Sample Rate and Audio Channel on "Original" to keep the source values, or set 44100 Hz and Stereo for a CD-standard file. Use Trim to export only a segment.
4. Convert and Download: Click "Convert" and download your WAV. No sign-up, no watermark — files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours.

WAV Bit Depth and Sample Rate Guide

WAV stores raw PCM samples, so its size and quality come straight from three numbers: bit depth, sample rate, and channel count (bitrate = bit depth × sample rate × channels). Higher values mean larger files, not "better than the source" — extracting to 24-bit cannot add detail an MKV's lossy AAC/AC-3 track never had.

Frequently Asked Questions

Which audio track does it extract if my MKV has several?

The primary (first) audio stream is extracted by default. Matroska is, in the project's own words, "an envelope in which there can be many audio, video and subtitles streams," so a film MKV may hold separate language dubs, a commentary track, and a 5.1 mix. If you need a specific one, trim or re-mux the MKV to isolate that track first, then convert the result to WAV.

Will converting to WAV improve the audio quality?

No. WAV is a lossless container, so it preserves exactly what was in the MKV's audio track — but if that track was lossy (AAC, AC-3, Opus, MP3), the WAV inherits those existing artifacts. Exporting at 24-bit/96 kHz makes a bigger file, not a cleaner one. The benefit of WAV here is a stable, editable master that won't lose more quality on each subsequent edit and save.

Why is my WAV file so much larger than the MKV?

WAV is uncompressed PCM. A 16-bit/44.1 kHz stereo stream runs at 1,411 kbps (16 × 44,100 × 2), versus roughly 128-256 kbps for the lossy audio inside a typical MKV — so the audio alone can grow several times over even though you dropped the video. For sharing on services that cap attachments (Gmail at 25 MB, Discord's free tier at 10 MB), convert to MKV to MP3 instead, or compress the WAV afterward.

Is there a maximum size for the WAV output?

Standard WAV is built on RIFF, whose header stores the file and chunk lengths in 4-byte (32-bit) fields, capping a conventional .wav at about 4 GB (4,294,967,296 bytes). For 16-bit/44.1 kHz stereo that's roughly 6.7 hours of audio; longer recordings need the RF64 or Wave64 extensions, which most editors read but not every player does.

How big will a few minutes of extracted audio be?

In our testing, a 16-bit/44.1 kHz stereo WAV works out to about 10.1 MB per minute, so a 3-minute clip lands near 30 MB and a 30-minute episode near 300 MB — driven entirely by the bit depth, sample rate, and channel settings, not by the source video's resolution. If size matters more than an uncompressed master, convert WAV to MP3 after extraction.