File Conversion

How to Convert MKV to MP4 File

  • Written By Nishat Paiker

  • Updated on December 2, 2020

  • Min Reading 4 Min

Summary: This article shares easy and fast methods to convert MKV to MP4 files. And, now you can convert unlimited videos with no file size restraint using the best MKV to MP4 converter software —Stellar Converter for Audio Video. Download it from below before reading further.

Free Download For Windows       Free Download For Mac

Usually, Matroska Video File or MKV videos are of a larger size compared to the MP4 file format. That’s the reason you cannot easily upload videos in MKV format on Facebook, YouTube, Vimeo, or other online platforms. MKV is also not compatible with most mobile devices. Thus, converting MKV to MP4 file is a feasible option to save or play your MKV videos on any mobile device or to upload them online.

MP4 or MPEG-4 is an industry-standard video format compatible with almost every device, web platform, media player, editing software, etc.

There are many software available that can convert MKV videos to MP4 format. Below, we share the best MKV to MP4 converter programs that are secure and free.

  1. Professional Stellar Converter for Audio Video
  2. Online Free MKV video converters
  3. VLC Media Player
  4. Handbrake
  5. Ffmpeg

Methods to convert MKV to MP4 file format

1. Professional Stellar Converter for Audio Video (Recommended)

Download Stellar Converter for Audio Video on your computer to convert MKV to MP4 file format. It is a secure MKV to MP4 converter for Mac or Windows system. You can convert as many number of videos to MP4 file format.

The software lets you to customize the output video file by modifying the resolution, frame rate, bit rate, etc. Additionally, Stellar MKV video converter has robust functions like video editing, GIF creation, merge videos, add watermark, convert videos to audio, etc.

Steps to convert MKV to MP4:

Step 1: Download and run Stellar Converter for Audio Video on PC or Mac using the below link.

Step 2: Click Add File to add MKV video file(s) for conversion.

Step 3: Click on Output Format button at the bottom-right corner.

Output Format MP4

Step 4: Under Default Presets tab, select MP4 Format Type. (Optional) Configure the desired output settings under Advanced Settings tab.

select MP4 format type

Step 5: Click OK. Now, click Convert.

Step 6: Once the MKV file is converted, the software prompts to select the destination path for saving the MP4 file.

Step 7: Next, click Save.

2. Online free MKV video converter – MKV to MP4

Zamzar Online Conversion interface
Figure: Zamzar Online Conversion interface

Online converter tools such as Zamzar, CloudConvert, or Convertio are easy-to-use and can quickly convert an MKV file to MP4 for free. You only require an Internet connection with good speed for MKV file conversion.

However, the online conversion tools are not viable, if you have several MKV videos to convert. You can convert only one or two videos at a time.

Usually these are the steps to convert MKV to MP4 file on an online converter tool:

  1. Add or drag MKV files into the program interface.
  2. Select MKV format from the list provided.
  3. Click the ‘Convert’ button.

2. Use VLC Media Player to convert MKV files

Use VLC Media Player to convert MKV to MP4 on Mac or Windows computer. The media player not only plays your videos but also functions as a MKV to MP4 converter.

Steps to convert MKV to MP4 with VLC Media Player:

1. Open VLC Media Player.

2. Navigate to click Media > Convert/Save.

3. In the Open Media window, click Add to insert MKV video(s).

4. Click Convert/Save.

5. In Convert dialog box, under Destination, browse to select destination folder for the new video file.

6. Under Profile, select MP4 video format.

7. Click Start to convert. The converted MP4 videos are saved at your chosen location.

3. Convert MKV Videos with Handbrake

Handbrake is a video transcoder program that can convert MKV files to MP4. The software has the provision to set frame rate, bit rate, etc., in the output video file. You can also use the Presets that automatically optimize the video file as per the device on which you want to play the MKV video.

Steps to convert MKV to MP4 with Handbrake:

1. Download Handbrake from

2. Launch Handbrake on your laptop/computer.

Handbrake MKV to MP4 converter interface
Figure: Handbrake MKV to MP4 converter interface

3. Click Open Source to add MKV video files for conversion.

4. Set the format to MP4 or click on Presets in menu bar to select the settings as per your device.

5. Click Browse at the bottom to choose location for saving the MP4 video file.

6. Click Start Encode on top to begin the conversion process.

4. Convert MKV to MP4 with Ffmpeg

If you have prior knowledge of command lines, try Ffmpeg. The program can convert MKV files to MP4 format via command window of your computer. It uses the command lines, such as ffmpeg -i video.MKV -vcodec copy video.mp4.

Ffmpeg is available for Windows, Mac, and Linux operating systems.

Download the latest FFmpeg version from here.

If new to command lines, go through this guide provided by the developer.

Also read: How to install FFmpeg on PC – step by step.


This post shares the best MKV to MP4 converter — Stellar Converter for Audio Video. Unlike the Ffmpeg, Handbrake, and others, it is straightforward and easy-to-use. You don’t require any technical knowhow to convert your videos. Further, with Stellar MKV to MP4 converter, you can convert as many videos you want of any size. Plus, the software can also edit videos, convert YouTube videos to MP3 format, create GIFs, and do a lot more.

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