FLV to MKV Converter-How to Quickly Convert FLV to MKV

by Christine Smith • Jul 23,2019 • Proven solutions


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. 2.23 Convert MKV to AVCHD
  24. 2.24 Convert MKV to H264
  25. 2.25 Convert MKV to TS
  26. 2.26 Convert MKV to VCD
  27. 2.27 Convert MKV to AC3
  28. 2.28 Burn MKV to DVD
  29. 2.29 Burn MKV to Blu-ray
  30. 2.30 Convert MKV to SWF
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 Bluray to MKV
  11. 3.11 Convert FLV to MKV
  12. 3.12 Convert AVCHD to MKV
  13. 3.13 Convert OGM to MKV
  14. 3.14 Convert MTS to MKV
  15. 3.15 Convert WTV to MKV
  16. 3.16 Convert VOB to MKV
  17. 3.17 Convert RMVB to MKV
  18. 3.18 YouTube 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

Chances are that you'd want to convert FLV files to MKV files, such as merging several FLVs to one single MKV file to reduce the video size based on quality output, or converting FLV to MKV files for better view back. To quickly and easily complete above video conversion, Wondershare UniConverter (originally Wondershare Video Converter Ultimate) is a great help. With it, you can gain high quality MKV files at the thunder fast speed.

Wondershare UniConverter (originally Wondershare Video Converter Ultimate) - Best FLV to MKV Video Converter for Windows / Mac (Catalina Included)

  • Convert FLV to MKV, AVI, MKV, MOV, MP4, etc. and aother 1000+ formats.
  • Burn MP4 to DVD disk to play with your DVD player at 30X fastest speed.
  • Optimized conversion presets for iDVD, iMovie, Final.
  • Edit videos with the advanced video editing functions like trimming, cropping, adding watermark, subtitles etc.
  • Download videos from YouTube and other 1000+ video sharing sites.
  • Supported OS: Windows NT4/2000/2003/XP/Vista/7/8, and Windows 10 (32 bit & 64 bit), Mac OS 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6
Security Verified. 5,481,347 people have downloaded it.

How to Quickly Convert FLV to MKV with Wondershare UniConverter (originally Wondershare Video Converter Ultimate)

There're 2 versions of Wondershare UniConverter (originally Wondershare Video Converter Ultimate) for both Windows and Mac users, make sure you're downloading the right version. Both versions share the same feature and below is the detailed guide on converting FLV files to MKV (takes Windows screenshots for example).

Video Tutorial: Wondershare UniConverter (originally Wondershare Video Converter Ultimate) - Convert FLV to MKV

Step 1 Add FLV Files to Wondershare FLV to MKV Converter

Add local video files by clicking Add Files button or by simple Drag-and-Drop way, then they will show in the left windows as thumbnails.

convert flv to MKV - add file

If you want to merge them into one MKV file, just check the box Merge all videos into one file at the bottom of this window.

Step 2 Choose Output Format

Open the drop-down format list, select Video category. For HD quality, you can choose HD720P or HD1080P, but note that HD MKV file size is larger than that of MKV file.

flv to MKV converter - choose output format

Step 3 Start FLV to MKV Conversion

Click Convert button to start converting FLV to MKV file, and in a few minutes or half an hour(depends on the file size), Wonddershare FLV to MKV converter will finish the video conversion. You can also set it running in the background which allows you to do other things in the meantime.

flv to MKV converter - convert

Optional: How to Enhance MKV Videos

After conversion, you can take advantage of Wondershare UniConverter (originally Wondershare Video Converter Ultimate)'s editting feature, which enables you to trim, crop and adjust converted MKV video files, add watermarks and video effects, etc. in an extremely easy way. All you need is to click edit options below the chosen videos, and then a window with a lot editting functions will pop up(as the picture below), now go ahead and enhance your MKV video at will!

edit mkv video - edit videos

Christine Smith

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Resource > MKV > FLV to MKV Converter-How to Quickly Convert FLV to MKV

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