How to Change Aspect Ratio of MKV on Windows and Mac?

MKV Aspect Ratio Converter - Convert MKV Aspect Ratio to 4:3, 16:9, etc

I downloaded an MKV file and it is with an 16:9 aspect ratio, but it looks too squashed on my screen. I have no problem in playing my other video files with 4:3 aspect ratio. So is there one software to help me to change my MKV aspect ratio from 16:9 to 4:3?

I downloaded one file in .mkv format but it has wrong aspect ratio. I used MakeMKV to change my MKV aspect ratio, but it did not give me what I want. Can you share another software to change my MKV aspect ratio without losing quality?

Many users have posted questions about how to change MKV file aspect ratio. Can't get good MKV view experience on your screen? Failed to upload your MKV file to Facebook, Instagram, etc due to MKV unsupported aspect ratio? All MKV aspect ratio related issues can be easily solved by a powerful MKV aspect ratio changer. Now the following article just gives you the satisfying answer.

Why Change MKV Aspect Ratio?

Video aspect ratio describes the relationship between video width and height. The widely used video aspect ratio includes 1:1, 16:9, 9:16,4:5, 5:4, 21:9, 4:3, etc. You can get the best view experience only if your video aspect ratio is the one your device or player best supports. Also, some popular video service only supports certain video aspect ratio when you upload your video to it. If your video file, such as MKV, does not follow your screen or video service supported aspect ratio you will get black bars on either side or get squashed image or your uploaded MKV file will not be accepted by Instagram, IGTV, Facebook, etc.

How to Change MKV Aspect Ratio?

You can't change your MKV aspect ration without a workable MKV Aspect Ratio Changer. Avdshare Video Converter is just designed for this purpose. With Avdshare Video Converter, the following work can be done efficiently:

  1. Change your MKV aspect ratio between 1:1, 16:9, 9:16,4:5, 5:4, 21:9, 4:3, etc without any quality loss.
  2. Change aspect ratio of MP4, FLV, AVI, MOV, WMV, ASF, 3GP, AVCHD, etc.
  3. Adjust MKV, MP4, AVI, FLV, etc to another video format after changing its aspect ratio.
  4. This software also works to change MKV or other video format files resolution, frame rate, sample rate, volume, etc, to rotate video file, to remove or add subtitles, logo, watermark from or to MKV, MP4, AVI, etc.
  5. You can also extract MP3, AAC, WAV, etc from MKV or any other video format file.

Guide on Changing Aspect Ratio of MKV

You can follow the steps below to change the aspect ratio of your MKV file.

Make Preparation: Free download MKV Aspect Ratio Changer

Free download the professional MKV Aspect Ratio Changer - Avdshare Video Converter (for Windows, for Mac), install and then launch it, the following interface will pop up.

Step 1 Import MKV Video file

Click the Add File button to import your MKV file to this software interface. The Drag&Drop feature also works to import the MKV file to this software.

Step 2 Set MKV desired aspect ratio

Click Setting... button>Advanced>Video Codec>Aspect Ratio where any needed MKV aspect ratio can be easily selected or you can overwrite any wanted MKV aspect ratio.

Next, click Apply to All button and Ok button to save the setting.

Step 3 Change MKV Output Format (Optional)

If for any reason that you want to adjust your MKV format to another one after changing its aspect ratio you can click the 'Profile' button>'General Video' category to make it.

Step 4 Complete changing the MKV aspect ratio

The last step is to click the Convert button to start changing the MKV video aspect ratio and it only takes a little while to get the MKV aspect ratio change work done.