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1. Play MKV on Device+
  1. 1.1 Top MKV Player
  2. 1.2 Play MKV on Mac
  3. 1.3 Play MKV on Apple TV
  4. 1.4 Play MKV on Samsung TV
  5. 1.5 Play MKV on Sony TV
  6. 1.6 Play MKV on LG TV
  7. 1.7 Play MKV on PS3
  8. 1.8 Play MKV on Xbox One
  9. 1.9 Play MKV on Xbox360
  10. 1.10 Play MKV to iPhone
  11. 1.11 Play MKV to iPad
  12. 1.12 Play MKV on iPod
  13. 1.13 Play MKV on Android Phone
  14. 1.14 Play MKV in VLC
  15. 1.15 Play MKV in Windows Media Player
  16. 1.16 MKV Playback Issues in VLC
2. Convert MKV to Other Format+
  1. 2.1 Convert MKV to MP4
  2. 2.2 Convert MKV to MP4 on Mac
  3. 2.3 Convert MKV to MP4 Online
  4. 2.4 Convert MKV to MP3
  5. 2.5 Convert MKV to Audio
  6. 2.6 Convert MKV to WMV
  7. 2.7 Convert MKV to M4V
  8. 2.8 Convert MKV to AVI
  9. 2.9 Convert MKV to AVI Online
  10. 2.10 Convert MKV to FLV
  11. 2.11 Convert MKV to DVD
  12. 2.12 Convert MKV to MOV
  13. 2.13 Convert MKV to iTunes
  14. 2.14 MKV to MOV Converter Online
  15. 2.15 Convert MKV to VOB
  16. 2.16 Convert MKV to DivX
  17. 2.17 Convert MKV to MPEG
  18. 2.18 Convert MKV to MPEG2
  19. 2.19 Convert MKV to MPEG4
  20. 2.20 Convert MKV to XviD
  21. 2.21 Convert MKV to 3GP
  22. 2.22 Convert MKV to M2TS
  23. 2.24 Convert MKV to TS
  24. 2.25 Convert MKV to VCD
  25. 2.26 Convert MKV to AC3
  26. 2.27 Burn MKV to DVD
  27. 2.28 Burn MKV to Blu-ray
  28. 2.29 Convert MKV to SWF
  29. 2.30 Convert MKV to MP4 with Subtitle
  30. 2.31 Convert MKV to WAV
  31. 2.32 Convert MKV to MPG
  32. 2.33 Convert MKV to ISO
  33. 2.33 Convert MKV to WebM
3. Convert Other Format to MKV+
  1. 3.1 Convert MP4 to MKV
  2. 3.2 Convert MP4 to MKV on Mac
  3. 3.3 Convert MP4 to MKV Online
  4. 3.4 Convert M4V to MKV
  5. 3.5 Convert WMV to MKV
  6. 3.6 Convert MOV to MKV
  7. 3.7 Convert DVD to MKV
  8. 3.8 Convert M2TS to MKV
  9. 3.9 Convert AVI to MKV
  10. 3.10 Convert FLV to MKV
  11. 3.11 Convert AVCHD to MKV
  12. 3.12 Convert OGM to MKV
  13. 3.13 Convert MTS to MKV
  14. 3.14 Convert WTV to MKV
  15. 3.15 Convert VOB to MKV
  16. 3.16 Convert RMVB to MKV
  17. 3.18 Convert WebM to MKV
4. Edit MKV & Other Tips+
  1. 4.1 Extract Subtitles from MKV
  2. 4.2 Add Substitles to MKV
  3. 4.3 Add SRT to MKV
  4. 4.4 Compress MKV Video
  5. 4.5 Reduce MKV File Size
  6. 4.6 Cut MKV Files
  7. 4.7 Edit MKV Metadata
  8. 4.8 MKV No Sound
  9. 4.9 MKV Video Player for Android
  10. 4.10 MKV Converter for Mac
  11. 4.11 Free MKV Converter
  12. 4.12 MKV Player Mac
  13. 4.13 2D to 3D MKV Converter
  14. 4.14 Remux MKV
  15. 4.15 MKV Encoder
  16. 4.16 Convert MKV to FCP Mac
  17. 4.17 Stream MKV to TV with Chromecast
  18. 4.18 Import MKV to iMovie
  19. 4.19 Windows DVD Maker MKV
  20. 4.20 Convert MKV to MP4 with HandBrake Alternative
  21. 4.21 What is an MKV File

Top 4 Methods to Convert MKV to MP4 with Subtitles

by Kayla Morrison • 2023-06-01 14:01:14 • Proven solutions

"Today I ran into a problem: when playing MKV files in my Phone, subtitles always disappear. This makes subtitles unreadable?"

-- A question from VideoHelp Forum

Are you tired of not being able to play subtitles of your movies and television shows on your smartphone? Well, one of the most common reasons this happens is because the movie/television series you’ve downloaded are in the MKV format, which is often not supported by smartphones and other electronic gadgets.

So, what’s the solution to this problem? Well, the best way to make sure that this doesn’t happen is to get the best online MKV to MP4 with subtitles converter!

Part 1. How to Free Convert MKV to MP4 with Subtitles?

Now we will learn how to change MKV to MP4 with multiple subtitles. We will first learn how to convert MKV to MP4 with subtitles completely free. For this, we will see amazing software. Both of these software offers excellent conversion tools and features.

1. Using Free Video Converter

Head over to our website at and then download Free Video Converter on your system. It has a simple UI, and it's very user-friendly.

Step 1: Launch the Application and click on the central Folder icon or drag and drop your file to open it inside the software.

Step 2: When your file has opened up, click on Target, and then select the MP4 format. After this, click on the Add Subtitles on the drop-down. This will open a file explorer where you will select your subtitles file.

Step 3: Click on the Convert button to begin the conversion. When the conversion finishes, your files will appear in the Converted tab from where you can view it.

convert MKV to MP4 with subtitles by Wondershare Free Video Converter

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2. Using HandBrake

This is another great tool. It offers a great variety of video processing features for free.

Step 1: To begin head over to HandBrake's website at, then launch the Application and then either click on File from the left side menu or simply drag and drop your file onto the application.

Step 2: Several details of the video will be shown. Head over to the Subtitles tab and click on Add Subtitles to add your subtitles file. To being conversion, click on Start Encode on the top bar.

convert MKV to MP4 with subtitle by HandBrake

Part 3. Best Video Converter to Convert MKV to MP4 with Subtitles

What if you want to add multiple subtitles? What if you want to change the color of the subtitles and font style and size? If such questions come to your mind, then what you require is an advanced video converter. And the best video converter on the market is Wondershare UniConverter as it has the most advanced features which no other converter in the market possess.

Wondershare UniConverter - All-in-One Video Converter

Security Verified. 5,481,347 people have downloaded it.
  • Convert MKV to MP4, MOV, FLV, AVI, WMV, and other 1000+ formats with easy steps on Windows/Mac.
  • Burn and customize MKV files to DVD with free DVD menu templates.
  • Convert MKV files in batch with super fast speed and no quality loss.
  • Toolbox with additional functions like Subtitle Editor, Screen Recorder, VR Converter, GIF Maker, Fixing Media Metadata, and more.
  • Supported OS: Windows 10/8/7/XP/Vista, macOS 11 Big Sur, 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7.

How to convert MKV to MP4 with subtitle in Wondershare UniConverter:

Step 1 Import the MKV video file.

On Wondershare UniConverter, click to select the Video Editor category from the navigation pane that is present in the left of the interface. From the right window, click the Subtitle, and from your local computer, select and import the MKV video file you want to add the subtitles to.

open Wondershare Subtitle Editor

Step 2 Add the subtitles-SRT file to the video.

When the subtitle window opens up, stretch the Subtitles menu at the top-right section, and hit on the Add button, select and import the SRT file with the correct format to UniConverter.

convert mkv to mp4 with subtitle - add subtitle

Step 3 Personalize/Customize the content of the subtitles.

Once the subtitles appear below the preview window, you can customize the subtitle font type, its size, and color, along with other attributes like bold, italics, and underline using their corresponding options present under the Font section. Also, the Outline Width drop-down list and the Transparency slider allow you to customize the stroke width and the opacity level of the text. If you want to change the area where the subtitles should appear on the screen, i.e., at the top, middle, or bottom, you can click the relevant button present under the Position section to get this done. Once everything is set up, click the OK to save the changes, and to get back to the previous window.

convert mkv to mp4 with subtitle - edit subtitle by Wondershare Subtitle Editor

Note: If you want to modify the content of the subtitle or gain more editing controls, you would better move to the Toolbox > Subtitle Editor section, where you are able to use the Start Time and End Time fields to adjust the duration the text should appear on the screen.

Step 4 Define output preferences and convert to MP4.

Click to open the Output Format menu from the bottom, go to the Video tab, select the MP4 from the left pane, and pick your preferred resolution preset from the right. Optionally, use the File Location field to specify an output folder, and click the Save to convert the MKV video to MP4 with subtitles.

choose output as MP4

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Kayla Morrison

Kayla Morrison

staff Editor

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