MKV is a popular media format where the video content, audio content and other media information are saved separately without much quality loss. When you are watching a video in the MKV format, you might find that the audio quality in the playback is usually better than other formats, and sometimes you would want to extract the audio track from the video and save it separately as an MP3 file. In order to do that, you need an MKV to MP3 converter program. There are a lot of media converter programs that you can use to convert an MKV video file to an MP3 audio file. Some can do the job perfectly, while others are not so good. To help you get your MKV video perfectly converted to an MP3 audio file, we have hand-picked some of the best MKV to MP3 converter programs in this article, and prepared the detailed introductions and user guides for you. Take a look at the following recommendations and I’m sure you will find the best program for yourself to extract audio from MKV to MP3.

Part 1. Extract Audio from MKV to MP3 with Leawo Video Converter

The first MKV to MP3 converter that I would like to recommend to you is Leawo Video Converter. The reason why I put this option in the first place is not only because it’s my personal favorite, but also because it’s so powerful and convenient that could outmatch almost all of the media converters on the market.

Leawo Video Converter is a professional media converter program that can convert more than 180 kinds of video or audio from one format to another. With the professional media converting technology, Leawo Video Converter can retain the best quality and the most detail in the final output result, no matter it’s a video or audio that you are converting. Besides the powerful media converting function, Leawo Video Converter also has a practical video or audio editor built in. If you are converting a video, you will be having the options to trim or crop the video, add watermark to video, convert 2D video to 3D, remove the noise in the video background or adjust the video performance parameters. When you are converting audio, on the other hand, you can also edit the bit rate, sample rate, audio codec and audio channel as well. So it’s safe to say that with Leawo Video Converter, you are guaranteed to be able to get your media converted just the way you like it.

Leawo Video Converter provides an intuitive and easy-to-use user interface. With the brilliant software design, anyone can get an MKV video file to an MP3 audio file with Leawo Video Converter within minutes. Here is a detailed guide on how you can convert MKV to MP3 audio with Leawo Video Converter.   



Step 1: Launch Leawo Video Converter and go to the “Video Converter” function module by clicking the “Video Converter” button. On the main interface of the video converter, click the “Add Video” button to import your source MKV file. Another way to import the file is by directly dragging and dropping the file in the center of the interface.

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Step 2: The default output format in Leawo Video Converter is “MP4 Video”. In order to change that to “MP3 Audio”, you have to click the “MP4 Video” area, then click “Change” to go to the format selection panel.

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On the format selection window, you can see all of the available video and audio format listed in different categories. To set “MP3” as the output format, click the “Common Audio” tab, then find “MP3 Audio”, and then click to select.

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Step 3: Finally, click the green “Convert” button, set an output directory in the popped-out panel, and then click the “Convert” icon to start the MKV to MP3 conversion

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Part 2: Extract Audio from MKV to MP3 with Any Video Converter

Besides Leawo Video Converter, another media converter that I would like to recommend for the MKV to MP3 conversion task is Any Video Converter. Any Video Converter, also known as AVC, is a media processing center that can finish various media tasks like video converting, YouTube video downloading, audio extracting, mobile data transferring, DVD burning, iPhone data recovering and more. However, not all of these functions are available for free. The free version of Any Video Converter only provides some basic media converting services. If you want the full version of the program, you are going to need to pay %59.95 to get the complete access to all of its functions.

Although the price of the program is relatively high, you can still try it if you are highly dependent on its advanced functions. Also, using Any Video Converter to extract MP3 audio from MKV video is not hard. Now I’ll show you how to do that exactly

Step 1: Download and install Any Video Converter on your computer.
Step 2: Launch the program. At the main interface of Any Video Converter, click “Add Video” to import your source MKV video file.
Step 3: To set “MP3” as the output format, simply click the “Select output profile” button and find “MP3 Audio” in the dropdown menu.
Step 4: You can do some editing to the video or audio before the conversion. When you are done with editing or you have decided to just convert the audio as-is, just click the “Convert Now!” button to start the conversion task.

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Part 3: Extract Audio from MKV to MP3 with CloudConvert

The slogan of CloudConvert is “Convert anything to anything”, which speaks for its powerful and all-inclusive media converting service to some extent. Differing from the two media converting products introduced above, CloudConvert is an online media converter tool instead of a standalone media converting program. Being an online media converter tool means that the service does not require any downloading or installation in order to work. To convert an MKV video file to an MP3 audio file with an online converter tool, all you need to do is uploading the video, choose a format, let the online converter do the job and then download it back to your computer. However, there are drawbacks that come with convenience at the same time. Online media converters like CloudConvert usually have limitations in the converting speed, supported format or the file size. So in the end, it all depends on your needs. Do you want your file converted in the shortest amount of time, or do you want more control over the converting process?

One of the advantages of online converter tools is the ease of use, and CloudConvert is no exception about that. With CloudConvert, you can easily convert your MKV video to MP3 with some clicks of your mouse. Here are the detailed steps on how to convert MKV to MP3 with CloudConvert.

Step 1: Upload your MKV video to the website. You can upload your source video from a URL, Google Drive, OneDrive or directly from your computer. If you want to upload the file from your computer, just click the “Selec Files” button and find your MKV video. Remember that you can only upload files that are less than 100 MB in size.
Step 2: After source MKV file is imported, you need to set MP3 as output format. You can also adjust audio parameters if you are not satisfied with the default parameters.
Step 3: Click “Start Conversion” button to start to convert MKV to MP3 online with CloudConvert. When the conversion is done, click the “Download” button to download the converted file to your computer.

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Part 4: Extract Audio from MKV to MP3 with Aconvert

Besides CloudConvert, there is another online media converter tool that I want to introduce to you, and the name is Aconvert. Aconvert is a multifunctional online video converter tool that is capable of converting different kinds of media files like videos, audios, archive files, eBooks, PDFs, documents and more. Comparing to CloudConvert, this online converter tool has more dedicated servers to support the converting tasks, more supported media formats, and obviously a more user-friendly interface. However, it doesn’t mean that Aconvert is superior in any aspect comparing to CloudConvert. For example, the maximum file size that is accepted by Aconvert is 40M each, which is smaller than the CloudConvert’s 100M.

If you have a small MKV video and you want to extract the audio from it with the least effort, Aconvert is still a good choice. The following is how you can convert MKV to MP3 online with Aconvert. 

Step 1: Go to the website of Aconvert. At the homepage of the website, click the “Add Files” button to upload your source MKV video file.
Step 2: Once the MKV file is successfully uploaded, click the “Target” dropdown menu and choose “MP3” as the output format.
Step 3: Click the “Convert Now” button to start the conversion. After the conversion is completed, you can then download the MP3 file back to your computer.

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Part 5: Comparison Among the Four Video Converters

In the above, we talked about four different tools that you can use to extract MP3 from an MKV video. Among them, Leawo Video Converter is obvious the most powerful and balanced choice, while Any Video Converter provides more media functions in the premium version. Online converters like CloudConvert and Aconvert can let you get the job done easily but come with a lot of limitations. To give you a better idea how these tools differ from each other, Here is a simple comparison form for your reference.

 

Leawo Video Converter

Any Video Converter

CloudConvert

Aconvert

Supported media formats

180+

100+

70+

80+

Basic Video Converting

Yes

Yes

Yes

Yes

Basic Audio Converting

Yes

Yes

Yes

Yes

Basic Video Editing

Yes

Yes

 

 

Real-Time Preview

Yes

Yes

 

 

2D to 3D conversion

Yes

 

 

 

Remove Noise

Yes

 

 

 

Device Output Preset

Yes

Yes

 

 

Works without Network

Yes

Yes

 

 

File Size Limitation

No Limit

No Limit

Limited 100M

Limited 40M

Converting Speed Limitation

No Limit

No Limit

Limited

Limited