4 Best Ways to Convert AVI to MKV in 2024

Step 1. Launch HD Video Converter Factory Pro and select “Converter” on the main interface. Then, click “Add Files” to import .avi files from your computer.
You can import multiple files for a batch conversion.

Step 2. Click the format image on the right to unfold the export profile menu. Navigate to the “Video” tab and select the “MKV” format.

Optional Step. Click the “Parameter settings” button to adjust the video and audio options, such as codec, frame rate, aspect ratio, and volume. Beyond that, you can cut, crop, compress, and merge your videos with convenient editing tools.

Step 3. Tap the ▼ button at the bottom to specify an output path. Finally, hit “Run” to start the conversion at once.
With the support for GPU acceleration, your AVI files will be converted to MKV rapidly. When the process is done, a window will pop up and prompt you to check the resulting files.

For Mac users, you can use HandBrake as an AVI to MKV converter to perform the conversion. HandBrake is a well-known open-source transcoder for digital videos that works on macOS and other platforms. With this program, you can easily change AVI or other video formats to MKV. However, its interface may confuse novices as there are too many buttons and options.
Click here to download HandBrake on your Mac computer instantly, and follow the instructions below to convert AVI to MKV.
Step 1. Open HandBrake and add a source file (.avi video).
Step 2. Click “Browse” to choose a destination location and change the Output Format to MKV. You can also change the video and audio codecs.
Step 3. Modify other output settings like video frame rate, audio bitrate, subtitles, size, and chapters based on your needs. Of course, you can leave them just as default.
Step 4. Click the “Start” button at the top menu bar to make Handbrake convert AVI to MKV.
The encoding time depends on some variables, including the speed of your Mac, the length of the video, other programs you’re running, and whether you will do a 2-pass encoding.

CloudConvert can turn your AVI files into MKV format online with multiple options to control video resolution, quality, and file size. The source file limit is 1GB for free accounts.
Step 1. Visit https://cloudconvert.com/avi-to-mkv.
Step 2. Click the drop down arrow to select and import the source file from your computer, Google Drive, Dropbox, OneDrive, or by URL.
Step 3. Click the wrench icon beside the “MKV” format, and you can change the video, audio, and subtitles settings, trim the video, or add an image as a watermark to the video. Press “Okay” to save your tweaks.
Step 4. Click “Convert” and wait for the file uploading and converting process.
Step 5. When the process is finished, download the .mkv file to your computer.

FreeConvert can convert AVI to MKV online for free with a max file size of 1GB. It also provides optional settings to control the video screen size, length, subtitles, and audio fade-in/fade-out.
Step 1. Visit https://www.freeconvert.com/avi-to-mkv.
Step 2. Go to “Choose Files” and add AVI video files from your computer, Dropbox, Google Drive, or a URL.
Step 3. Click the gear icon to change the advanced options like video codec, add subtitle, adjust volume, and trim video. Then, apply your settings.
Step 4. Hit “Convert→” to upload and convert AVI files to MKV.
Step 5. Once done, click “Download” to save files to the device or cloud.