How to Upload MKV to Facebook Successfully? Error Now Fixed! 

John Salley

Nov 02, 2015 11:18 am / Posted by John Salley to Video

Trying to upload MKV videos to Facebook account, but with no success. Any ideas on how to troubleshoot this problem? MKV file format stands for Matroska video, which is used more and more popular in various HD camcorders, but it’s not supported by many video sharing websites like Facebook. People use Facebook to keep up with friends, upload an unlimited number of photos, share links and videos, and learn more about the people they meet. So if you want to upload .mkv to Facebook on Mac 10.11, to save your time first you’d better convert mkv to Facebook mp4 or flv video. 


Forums are flooded with questions about how to upload a video to Facebook as many users have come across with various Facebook video upload errors similar to those mentioned above. There are many reasons responsible for those errors, including Internet connection, site errors or something else. But mostly it is your video format that you should address. In other words, to make clear how to post a video on Facebook successfully and smoothly, you have to first of all make sure that the video you are trying to upload meets Facebook’s requirements on the size, time, and format of its acceptable videos. 

What video formats do Facebook accept? Before you start to upload videos to Facebook, see the details about the video that Facebook supports and allows below: 

Facebook Video Formats 

MPEG-4 (.mp4, .m4v. mpeg4), MPEG (.mpe, .mpg, .mpeg, .dat), FLV (.flv, .f4v), AVI (.avi), WMV (.wmv), 3GP (.3gp, .3g2, .3gpp), MKV (.mkv), AVCHD (.m2ts/.mts), MOD (.mod), QuickTime video (.mov), DVD video (.vob), TOD (.tod), DIVX (.divx), DV video, OGG (.ogm, .ogv), MPEG Transport Stream (.ts), Nullsoft Video (nsv) 

Facebook Video Size Limit 

The maximum size of all the videos uploaded to Facebook shall be no greater than 1024 megabytes, or MB. No minimum video size is applied. 

Facebook Video Length 

Any video longer than 20 minutes in length will get an error message when uploading video to Facebook. 

Facebook Video Dimensions 

The dimension, also called aspect ratio, refers to the width and height of the video screen. The dimensions of the Facebook video shall be between 9×16 and 16×9. 

Note: Suggested by Facebook, uploading video to Facebook in MP4 format is preferred. But even if you have the right format, you may still run into issues as additional restrictions are in place that may prevent you from uploading videos to Facebook. In fact, you can just get a Facebook video uploader rather than scratching you head looking for the problem behind any Facebook video upload error. 

Hot Search: iMovie videos to Facebook | Facebook Video to MP4 

Actually, Facebook can accept MKV as video source but it also has some preferences like MPEG-4/H.264/progressive scanning video. Plus, due to its big size and may be the broadband speed, it is hard for people to load an entire MKV movie to Facebook. In order to share your MKV files on Facebook, you have to encode MKV to Facebook most compatible video formats and adjust the video size and length. here we provide you this easy to use yet powerful mkv to facebook iMedia Converter for Mac. With its’ friendly interface, you can finish the whole conversion with a few clicks. Here is the review

For Windows users, you can use Pavtube Video Converter Ultimate. Both the versions can be get at 40% off discount for Pavtube Studio is holding the Halloween Spirit Coupon

Below guide will teach you how to convert MKV files to Facebook on Mac OS X El Capitan, Free download it right now to have a wonderful experience: 


Other Download: 

– Pavtube old official address: 
– Cnet Download: 

Easily Convert MKV to Facebook on Mac 10.11 with MKV to Facebook Converter Mac 

Step 1 Add MKV files 

Click “Add Video” button to add video files to the Mac MKV to Facebook Converter. It supports drag-drop and batch conversion, so you can import and convert several multimedia files at a time. 


Setp 2: MP4 as output format for Facebook 

Click “Profile” drop-down list select output format, here we choose .MP4 format. This Mac Video Converter also supports to convert mkv video to almost all popular formats on Mac for iPod, iPad, iPhone 6S, PSP, PS4, Mobile Phone, Apple TV and so on. 


Tip: If you have other special demand for the output video, you can open “Settings” window. Here, you are allowed to adjust video and audio parameters. 

Step 3.Convert videos to H.264 MP4 

Hit right-bottom “Convert” button to start video to H.264 MP4 encoding process. When the conversion is over, you can smoothly stream videos to Facebook. 

Tips on Uploading MKV Video to Facebook 

How to upload a MKV video to Facebook? Just follow the following few simple steps to upload video to Facebook without getting any Facebook video upload error: 

Step 1 – How to post a video on Facebook successfully? First of all, a Facebook account is essential. Sign in the Facebook home page if you have an account or create one and sign in. 

Step 2 – Click “Profile” to get inside your personal page and click “Video”. 

Step 3 -Click “Upload” button. Then click the “Choose” button and find the video you just converted to Facebook format and click it. The mobile device uploading video to Facebook process is similar, you can just follow the direction to finish the job. 

Your video will need to process before others can see it on Facebook. When it’s ready to view, you’ll get a notification. Go to the video and click Edit to add a title, tag friends, choose a thumbnail and more. 

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