How to convert MTS to MKV
- Add your .MTS file - drop it in the box above or click to browse.
- Convert it to .MKV in a few seconds.
- Download your new .MKV file.
What to expect
- Remuxing copies streams bit-for-bit; the
.mkvmay be a few MB larger than the source.mtsdue to Matroska container overhead, but video quality is identical. - AVCHD cameras often record 1080i interlaced footage; remuxing preserves the interlacing - enable the Decomb filter in HandBrake if playback looks combed.
- Long AVCHD recordings split across multiple
.mtsfiles; join them with FFmpeg's concat protocol or import the full AVCHD folder into an editor before exporting.
Frequently asked questions
Is converting MTS to MKV lossless?
Yes, when remuxing with MKVToolNix or
ffmpeg -c copy - the video and audio data is copied unchanged, so there is no quality loss at all.Can I keep the original AC-3 audio in the MKV?
Yes. MKV supports AC-3 (Dolby Digital) natively, so the audio stream copies over unchanged during a remux. Only re-encoding in HandBrake will convert it to AAC by default.
Why is the MKV slightly larger than the original MTS?
Matroska adds its own index tables and metadata blocks as container overhead. The difference is typically only a few MB and does not affect playback quality.
My recording is split across several .mts files - can I merge them?
Yes. Use FFmpeg's concat protocol (
-i "concat:00001.mts|00002.mts") or import the full AVCHD folder into an editor like DaVinci Resolve and export a single MKV.Programs that convert MTS: HandBrake · Aimersoft iTransfer for Windows · Free Studio · Freemake Video Converter · ImTOO DPG Converter · MediaCoder · WinX Video Converter · Aimersoft iTransfer for Mac
