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Last Updated by May Watt - Contact Author

How to Convert MKV to MP4 on Windows 10/8/7 Quickly Without Loss

Convert or Compress MKV to MP4 on Windows 10/8/7, etc. to Play HD MKV Videos on MP4 Supported iPhone iPad Android Xbox PSP and More

Many people have a scruple about the quality loss when deciding to convert MKV to MP4 (MPEG-4 Part 14), because MKV is publicly known as an ideal format for HD movies/videos, while MP4 is mainly famous for its broad compatibility. This theory is partly correct, but we can still convert MKV to MP4 format without loss in video audio quality. Please read below and figure out why and how.

Both MKV and MP4 are container formats. MP4 has many specific formats supported, among which H.264 AVC and MPEG-4 AVC are here to mention. Both H.264 and MPEG-4 can be in an extension of mp4. If you want a highest possible quality, converting MKV to H.264 as an MP4 file is more suggested.

Converting MKV to MP4 is the best way to go when you can't play MKV files or meet MKV playback errors like MKV plays pixelated/blocky, MKV no sound in Windows, large 4K MKV stutters on computers, smartphones, tablets, game consoles or other devices. FYI, human naked eyes can hardly see any quality difference/degradation if playing the original MKV file and the resulting MP4 file on mobile devices. It's an easy job if you get a powerful and easy-to-use MKV to MP4 converter.

Best MKV to MP4 Converter for Windows (10, 8.1, 8, 7, XP, etc.)/Mac

WinX HD Video Converter Deluxe - Equipped with Full Hardware Acceleration, High Quality Engine and more cutting-edge technologies, it can convert any MKV to MP4 for playback on more devices at the fastest speed while keeping nearly lossless quality. Hundreds of premade presets allow you to convert MKV to iPhone, iPad, Android, Windows Mobile, Xbox or other devices directly.

Strapped for time? Click one of the links below to jump straight to your most interested part.

Part 1 : Why Convert MKV to MP4?

MKV, a container format capable of incorporating audio, video and subtitles into a single file, becomes popular over these years. It is gradually recognized by more and more devices and programs, such as PSP/PS4 console. However, it still can't measure up to MP4 in terms of compatibility. We still find that MKV isn't in the supported file formats list of fashionable devices like iPhone and iPad. What's worse, some MKV players can't open every single MKV file you download online or get from other people.

Therefore, the important reason to convert MKV to MP4 is that MP4 is the most widely supported container format, making us watch MKV files anywhere we please. We can watch MKV movies on iPad when we are on the subway, fix MKV not playing in Windows Media Player or QuickTime error etc. But there're still other good causes to do that.

▶ Enrich or abandon original MKV elements
After converting MKV video to MP4 format, you can still keep HD H.264 video with surround sound AAC audio and include advanced cinematic extras such as multiple audio tracks (e.g. director's commentary), multilingual subtitles, chapter points, bonus content and more.

In addition, you can remove some parts of videos, like unwanted language and subtitle tracks, to reduce file size and store more movies on your device.

▶ Zero-quality loss after converting MKV to MP4
You don't need to worry about quality degradation after converting HD MKV video to MP4 format. Some professional and responsible MKV to MP4 converter software offers you tailor-made video transcoding. For instance, WinX HD Video Converter Deluxe (Windows 10, 8, 7, XP) and its Mac version are masterful at converting MKV to MP4, and also converting MP4 to MKV, while maintaining high video audio quality.

This MKV converting software allows you to choose H.264 to encode the output MP4 video, which means the output video utilizes the same advanced codec, thus achieving most desirable image quality.

Meanwhile, WinX MKV to MP4 converter for Windows (10)/Mac adopts VBR (Vibrate Bit rate) encoding method, which is as same as MKV. In VBR coding, you can choose the desired quality level and/or a range of allowable bitrates. Then the encoder tries to maintain the selected quality during the whole stream by choosing the optimal amount of data to represent each frame of audio.

The main advantage is that you are able to specify the output MP4 quality level and conserve as much space as possible for your storage-limited portable devices.

Part 2: Why WinX HD Video Converter Deluxe Is the Fastest MKV to MP4 Converter?

Supported OS: Windows 10 & lower, macOS Mojave & lower
Average User Rating: ★★★★☆

WinX HD Video Converter Deluxe boasts the world's No.1 fast conversion speed, 5X faster than others in the market. Why it is so fast? It is rated as the fastest video converter for the following reasons.

1. This program comes with multiple cutting-edge technologies, namely multiple CPU cores (up to 8), MMX-SSE, Hyper-threading and AMD 3DNow!

2. In 2015, its developer - Digiarty Software with over a decade of history, applied hardware accelerated video encoding and decoding technology into it. Because of inbuilt hardware encoder, it can make full use of CPU and GPU, thus processing video conversion 16x faster on machines configured with both QSV-allowed Intel processor (2-6th generation) and CUDA/NVENC-enabled NVIDIA GPU.

Free Download WinX HD Video Converter Deluxe to Convert MKV Format to MP4 on PC/Mac!

WinX HD Video Converter Deluxe is a simple-to-use program which comes with advanced features for encoding video files. - Editor's Review from Softpedia)

Part 3: How to Convert MKV to MP4 on PC/Mac - 3 Simple Steps

After downloading and installing WinX HD Video Converter Deluxe onto your computer, you only need 3 simple steps to get MKV converted to MP4.

Free Download WinX HD Video Converter for Windows 10/8/7
Free Download WinX HD Video Converter for macOS Mojave and lower

Step 1: Load target MKV files.

Open this converter and load an MKV file you want to decode from your computer, external hard drive, USB drive: Click + Video button at the top left corner of main interface, and then browse and open target items. If you need to transcode multiple MKV files, simply choose all of them for batch conversion. It will save you much time and energy.

Step 2: Select MP4 in output profile.

After loading source files, Output Profile panel will pop up automatically. In this screen, you will find many preset MP4 output profiles. You can choose one based on your own needs. Here let's select MP4 Video (codec: H.264+ AAC) under General Profiles category for good quality preservation and compression ratio.

Convert MKV to MKV fast without quality loss

Step 3: Convert MKV to MP4 right now.

Before any further, you can change the destination folder. By default, output files will be stored in C:\Users\admin\Videos\WinXVideos\. Choose another one by clicking Browse button if you like. Once in place, just click RUN button - a blue round one - to start converting MKV video files to MP4 instantly.

Check detailed user guide of WinX MKV to MP4 converter >>

WinX HD Video Converter Deluxe: Built in 370+ audio video codecs, it is able to convert formats between all popular video formats like MKV, AVCHD, M2TS, MP4, AVI, WMV, HEVC, MOV, RM and more. Moreover, it is embedded with numerous profiles for Apple, Samsung, HTC, Sony, Microsoft portable devices, iOS, Android, Windows mobiles. Convert MKV to iPhone, MKV to iPad are good examples. Besides, it is a video editor, a video compressor, a video recorder, and YouTube video downloader.

Free Download the Best MKV to MP4 Video Converter on Windows & macOS

Related external sources:

[1] MKV: The Matroska Multimedia Container is an open standard, free container format, a file format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file...
[2] MP4: MPEG-4 Part 14 or MP4 is a digital multimedia container format most commonly used to store video and audio, but it can also be used to store other data such as subtitles and still images...


May Watt

May Watt is a member of Digiarty. She offers a bunch of tips of how to handle multimedia files (DVD, video files, music etc.) and keeps her focus on tech news about Apple, Google, GoPro, DJI and more.

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