mp3 to m4b
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How to Convert MP3 to M4B on Windows PC - Best MP3 to M4B Converter

by Brian Fisher

M4B file is an MPEG 4 file extension that is used for storing Audiobooks in iTunes. This file format is convenient to store audiobooks in it as opposed to MP3 since you can skip through audiobook or split up audiobooks. It is therefore important to convert MP3 to M4B if you creating audiobooks. How will you convert the MP3 to M4B format on your computer? Well, in this article we will introduce you to the best MP3 to M4B converter.

Part 1. How to Convert MP3 to M4B with the Best Audio Converter (with guide!)

To convert MP3 to M4B, using UniConverter is the best choice. This audio converter supports different audio formats such as MP3, AAC, M4R, AIFF, M4A, APE, AC3, WAV, AAC, OGG and AU just to name a few. Its conversion speed is superb since it is built with Intel and NVIDIA GPU hardware acceleration. Its user experience is also amazing. Other than audio conversions, UniConverter software allows you to burn media files, edit videos, and download media files and record videos online. It is a powerful tool equipped with different media functionalities that you may not miss to use. Before we look at how it works, let us highlight some of its key features and the file formats supported.

Get the Best MP3 to M4B Converter:

  • Convert between more than 150 video and audio format, such as HD WMV, HD MKV, TP, TRP, HD MOD, M4V, TIVO, DPG, VOB, 3GP.
  • Convert or record video from sharing sites like YouTube, Vimeo, Hulu, Facebook, Break and much more.
  • Transfer audio and video to device formats like iPhone, iPad, Android devices of different brands and also Game Consoles.
  • Inbuilt video editor that does basic editing such as add effects, watermarks and adjusting volume, saturation and brightness.
  • Perfectly compatible with Windows 10, 8, 7, XP, Vista; macOS 10.15 Catalina and earlier.

Below is the step-by-step guide on how to convert MP3 to M4B with iSkysoft. Follow this 3 easy steps and you will get the M4B file soon for Audiobook. Or you can also watch the video first to get a quick glimpse over how to convert MP3 to M4B on Mac.

Step 1: Import MP3 Songs to iSkysoft M4B Converter

You should install UniConverter on your Windows PC or Mac. On the main interface of the iSkysoft program, click on “Add Files” button to upload the MP3 files. You can also upload the MP3 files by using drag and drop method.

mp3 to m4b

Step 2: Select M4B as Output Format

The MP3 file uploaded will now appear on the screen with its title and metadata. Click on Output button at the top right and select Audio from thee options displayed. Under Audio option, you will see different audio formats. Find and click on M4B. Next select the destination to save your file.

convert mp3 to m4b

Step 3: Convert MP3 to M4B Format

Finally click on Convert button when you have chosen the correct output format and the output folder. The program will convert MP3 files to M4B within a few seconds. You can then open the converted audio from the defined location.

mp3 to m4b converter

Part 2. How to Convert MP4 to M4B Online is an online audio-video converter that converts a broad range of formats like MP4, MP3, WAV, MOV and many others with ease. The following guide will enlighten you how to use effectively.

How to convert MP3 to M4B online via

Step 1: Insert files via ‘+’ from your computer. You can add up to 2 files by clicking on ‘Add more files’.

Step 2: Now, opt for the desired format from the drop down menu near To initiate converting, click on ‘Convert’ button which will take some time process it.

Step 3: Once the conversion completes, tap on the download icon.

Note that online converter will always takes long time to download the file.

convert mp3 to m4b online

So, if you are looking for a great converter that speedily converts the file in no time, you must get UniConverter in Part 1! With its powerful line of features, you can fetch the resultant file format in a blink of an eye. It stretches computability with more than 150 file formats and allows batch processing too.

Although you can enjoy online platforms for conversion since they’re available in numbers, there are some disadvantages associated with converting files online, such as:

  • They do not support batch conversion i.e. you can’t get the privilege to convert multiple files at a time.
  • If you want to make use of converters, your device must have an active internet connection. The slower the connection, the slow will be the speed of conversion unlike desktop softwares.
  • The web-based converters can give hard times when it comes to convert larger sized files.

Part 3. How to Convert MP4 to M4B with iTunes

iTunes can be said as the convenient platform to get many things settled like updating or restoring iDevices. Also, it will help you converting MP3 to M4B and provide you with the desired results. However, you may find the process a little complex and lengthy. And therefore, many users don’t prefer this way for conversion.

How to convert MP3 to M4B via iTunes

Step 1: Run iTunes and head to your iTunes library. From the list there, pick out the MP3 file to be converted and right click on it. Tap on ‘Get Info’ now.

convert mp3 to m4b using itunes

Step 2: From the ‘Get Info’ window, choose ‘Options’ and from the drop-down of ‘media kind’, select ‘Audiobook’. Hit ‘OK’ and you’ll find the target file will getting transferred to the iTUnes books section i.e. being converted from MP3 to M4B.

convert mp3 to m4b with itunes

Bonus: What is M4B and What is it Usually Used for?

What is M4B format

If you witness ‘M4B’ format, it can be identified as audiobooks-especially the ones purchased via genuine Apple’s iTunes store. More or like, M4B share fine line of similarity with .M4a extension that also uses the MPEG-14 Part 14 format. This advanced format lets you stream the file over internet and usually features in the QuickTime of Apple’s iPhones.

What is M4B usually used for?

Usually, this type of format is mainly used by iTunes for stashing the audio books. It is widely used in other mediums, where one gets the liberty of storing digital bookmarks with the audio file that lets you use the pause, playback, rewind functions. In some sense, the m4a audio format is quite identical to M4B except the files used for music other than audiobook.

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Brian Fisher

chief Editor