# Convert RM to MKV

> Convert RM to MKV online for free in seconds. Files are processed in a secure, isolated sandbox and deleted automatically. No sign-up, no watermarks.

URL: https://www.converterrr.com/rm-to-mkv

- Runs in an isolated cloud sandbox with FFmpeg: files are deleted automatically, and the job uses cloud credits.
- Engines: FFmpeg (cloud).
- API: available. `POST /api/v1/jobs` with `"output_format": "mkv"` (paid plans).
- More: [Video converter](https://www.converterrr.com/video-converter), [RM converter](https://www.converterrr.com/rm-converter).

## How to convert RM to MKV

1. **Add your RM files.** Drag and drop RM files onto the converter, paste them, or click to browse. You can add several at once.
2. **Choose MKV.** MKV is already selected. Open Options if you want to change quality, size or metadata.
3. **Convert.** Click Convert. Files are processed in a secure cloud sandbox and are usually ready in seconds.
4. **Download your MKV.** Download each MKV file, or everything at once as a ZIP.

## Good to know

- RM files are typically used for archived streaming video from the late 1990s, while MKV is best for movies and series with multiple audio and subtitle tracks.
- This conversion runs on FFmpeg in an isolated cloud sandbox. Files are encrypted in transit and deleted automatically.

## RM vs MKV

|  | RM | MKV |
| --- | --- | --- |
| Full name | RealMedia | Matroska Video |
| Type | Video | Video |
| Extensions | .rm | .mkv |
| MIME type | application/vnd.rn-realmedia | video/x-matroska |
| Best for | archived streaming video from the late 1990s | movies and series with multiple audio and subtitle tracks |
| Properties | legacy format, proprietary | open standard |

**RM:** RealMedia was RealNetworks' streaming format in the early internet era.

**MKV:** MKV is a flexible open container that can hold unlimited video, audio and subtitle tracks in nearly any codec.

## Related conversions

- [RM to MP4](https://www.converterrr.com/rm-to-mp4) (cloud)
- [MP4 to MKV](https://www.converterrr.com/mp4-to-mkv) (in the browser)
- [RM to MP3](https://www.converterrr.com/rm-to-mp3) (cloud)
- [MOV to MKV](https://www.converterrr.com/mov-to-mkv) (in the browser)
- [RM to WebP](https://www.converterrr.com/rm-to-webp) (cloud)
- [GIF to MKV](https://www.converterrr.com/gif-to-mkv) (in the browser)
- [RM to MOV](https://www.converterrr.com/rm-to-mov) (cloud)
- [WebM to MKV](https://www.converterrr.com/webm-to-mkv) (in the browser)
- [RM to GIF](https://www.converterrr.com/rm-to-gif) (cloud)
- [AVI to MKV](https://www.converterrr.com/avi-to-mkv) (in the browser)
- [RM to WAV](https://www.converterrr.com/rm-to-wav) (cloud)
- [WMV to MKV](https://www.converterrr.com/wmv-to-mkv) (in the browser)

## Convert RM to other formats

[RM to MP4](https://www.converterrr.com/rm-to-mp4), [RM to MP3](https://www.converterrr.com/rm-to-mp3), [RM to WebP](https://www.converterrr.com/rm-to-webp), [RM to MOV](https://www.converterrr.com/rm-to-mov), [RM to GIF](https://www.converterrr.com/rm-to-gif), [RM to WAV](https://www.converterrr.com/rm-to-wav), [RM to WebM](https://www.converterrr.com/rm-to-webm), [RM to M4A](https://www.converterrr.com/rm-to-m4a), [RM to AVI](https://www.converterrr.com/rm-to-avi), [RM to FLAC](https://www.converterrr.com/rm-to-flac), [RM to AAC](https://www.converterrr.com/rm-to-aac), [RM to OGG](https://www.converterrr.com/rm-to-ogg), [RM to WMV](https://www.converterrr.com/rm-to-wmv), [RM to Opus](https://www.converterrr.com/rm-to-opus), [RM to FLV](https://www.converterrr.com/rm-to-flv), [RM to M4V](https://www.converterrr.com/rm-to-m4v), [RM to MPEG](https://www.converterrr.com/rm-to-mpeg), [RM to 3GP](https://www.converterrr.com/rm-to-3gp), [RM to WMA](https://www.converterrr.com/rm-to-wma), [RM to MPG](https://www.converterrr.com/rm-to-mpg), [RM to TS](https://www.converterrr.com/rm-to-ts), [RM to AIFF](https://www.converterrr.com/rm-to-aiff), [RM to AMR](https://www.converterrr.com/rm-to-amr), [RM to VOB](https://www.converterrr.com/rm-to-vob)

## Convert other formats to MKV

[MP4 to MKV](https://www.converterrr.com/mp4-to-mkv), [MOV to MKV](https://www.converterrr.com/mov-to-mkv), [GIF to MKV](https://www.converterrr.com/gif-to-mkv), [WebM to MKV](https://www.converterrr.com/webm-to-mkv), [AVI to MKV](https://www.converterrr.com/avi-to-mkv), [WMV to MKV](https://www.converterrr.com/wmv-to-mkv), [M4V to MKV](https://www.converterrr.com/m4v-to-mkv), [3GP to MKV](https://www.converterrr.com/3gp-to-mkv), [FLV to MKV](https://www.converterrr.com/flv-to-mkv), [MPEG to MKV](https://www.converterrr.com/mpeg-to-mkv), [TS to MKV](https://www.converterrr.com/ts-to-mkv), [MPG to MKV](https://www.converterrr.com/mpg-to-mkv), [MTS to MKV](https://www.converterrr.com/mts-to-mkv), [VOB to MKV](https://www.converterrr.com/vob-to-mkv), [M2TS to MKV](https://www.converterrr.com/m2ts-to-mkv), [APNG to MKV](https://www.converterrr.com/apng-to-mkv), [OGV to MKV](https://www.converterrr.com/ogv-to-mkv), [MXF to MKV](https://www.converterrr.com/mxf-to-mkv), [DivX to MKV](https://www.converterrr.com/divx-to-mkv), [3G2 to MKV](https://www.converterrr.com/3g2-to-mkv), [RMVB to MKV](https://www.converterrr.com/rmvb-to-mkv), [F4V to MKV](https://www.converterrr.com/f4v-to-mkv), [ASF to MKV](https://www.converterrr.com/asf-to-mkv)

## RM to MKV: frequently asked questions

### How do I convert RM to MKV?

Drop your RM file onto the converter above, make sure MKV is selected, and click Convert. When it's done, download the MKV file — it usually takes a few seconds.

### Is it safe to convert RM to MKV here?

Yes. Your file is sent over an encrypted connection to an isolated sandbox that's created for your job only, then both the original and the result are deleted automatically.

### Is the RM to MKV converter free?

Yes. Cloud conversions like this one use credits, and you get free credits every day (3 without an account, 10 with a free account).

### Will converting RM to MKV reduce quality?

No — MKV preserves the content of your RM file as faithfully as the format allows.

### Can I convert multiple RM files at once?

Yes. Add up to 5 files at a time without an account, 10 with a free account and up to 500 on paid plans, then download them individually or as a single ZIP.