Have you ever tried to buy some eBooks online so as to upload to your Kindle? If you have ever done this, you must be quite familiar with Amazon Kindle eBook store. In comparison, Amazon Kindle eBook store contains more eBooks and most of them are much cheaper than other eBook stores. But what puzzles users most is that some eBooks in this store only provide Mobi format which cannot be then compatible with other eBook readers, like Kobo, Nook, Sony and so on. Instead, these mentioned e-readers only support EPUB format. How to deal with such a problem? In order to play the purchased eBooks from Amazon Kindle eBook store on Kobo, Sony and other devices, you have to convert MOBI format to EPUB. Next, in this article, several conversion methods would be provided.

Part 1: MOBI vs. EPUB

Why can’t MOBI formats be compatible with some eReaders? What are MOBI and EPUB formats respectively? What are the pros and cons for both of two formats? Referring to the following introductions, you would be more clear about the two formats.

  What is MOBI?

As the standard eBook format for Amazon eBook store, MOBI has been popular since Kindle came to people’s everyday life. If you have never used Kindle before, you may be not familiar with MOBI format. Generally speaking, MOBI format could be divided into two categories: standard MOBI format KF7 referred MOBI7 and new standard KF8 which is also called MOBI8. Both of the MOBI standards are presented to be .MOBI as the suffix. MOBI7 does not support rich typesetting formats such as changing fonts and bolding in Kindle, while MOBI8 supports these typesetting formats, but Amazon does not support MOBI8 to be transferred directly to Kindle.


Easy and convenient for Kindle users

  1. Incompatible with other devices
  2. Incompatible on graphs, formulas
  3. Limited change on the text design

  What is EPUB?

EPUB (Electronic Publication) is an e-book standard proposed by the International Digital Publishing Forum (IDPF). The biggest feature of the EPUB is its versatility. It is currently the e-book format that supports most of the reading programs (basically all reader apps except the Kindle). The EPUB format is an open standard, and there are greater choices in development tools. Users can independently create EPUB format e-books through Sigil, Calibre, Jutoh and other software.

  1. Compatible with most of eReaders
  2. Exquisite on the formats
  3. Small in size


Low quality control

Part 2: How to Convert MOBI to EPUB with Leawo eBook Converter?

In order to convert MOBI to EPUB correctly, here you can refer to Leawo eBook Converter. As an important module of Leawo Prof. DRM, Leawo eBook Convert can easily remove DRM in MOBI, AZW3, KFX, PRC, HTML, TXT etc. from the original Kindle eBooks and then convert them to other formats, like EPUB which can be then read on Kobo, Calibre and so on. Once the formats have been converted, you can share the non-DRM eBooks with others freely. What’s more, Leawo eBook Converter can preserve 100% quality of the original after conversion, and it would complete the conversion task with 50X faster processing speed. As an easy-to-use design eBook converter, Leawo eBook Converter could make the conversion processes much simpler. For the details on how to convert MOBI to EPUB, please refer to the following steps.

Step 1: Download Leawo Prof. DRM

  • Leawo Prof. DRM
  • Leawo Prof. DRM

    - The most complete 5-in-1 DRM removal program in the world
    - 50x faster to remove DRM
    - Support multi-task processing
    - Support batch conversion
    - User-friendly interface and practical functions
    - Support Windows & Mac OS

Step 2: Log in Kindle app on your computer

Log in your Kindle desktop app with your own Kindle account and password.


Step 3: Launch Leawo Prof. DRM and enter the module “eBook Converter

First, you need to download Leawo Prof. DRM and then you can choose “eBook Converter” module which shows you the guidance to remove DRM protection from kindle.


Step 4: Add files to the program

Once entered eBook Converter module, you can click “Add Files” button and then you can find the “Kindle” button on the left side. Simply choose the file you would like to convert, and then click “Add” below to import the MOBI file to Leawo Prof. DRM.


Step 5: Set output format

Once the eBook has been imported, then you can choose the book and click “edit” button to confirm the output format. By the way, you can also choose the option “apply this output format to all eBook file”. Here you should input EPUB in the output format from the list.


Step 6: Set output directory

Now, at the bottom, set output directory in the “Output” box.


Step 7: Start to convert MOBI to EPUB

Finally, click the “Convert” button at the bottom right corner. Leawo Prof. DRM would start to remove the DRM and convert MOBI to EPUB.


Part 3: How to Convert MOBI to EPUB with Calibre Converter?

Calibre is another easy eBook converter that can convert various eBook formats. Calibre is free and the source code is open, and it has a cross-platform design which can be regarded as a complete e-library, including library management, multiple format conversion, news releasing, conversion of materials into e-books, and e-book reader synchronization functions and so on. It supports a lot of eBook formats, including EPUB、MOBI、AZW3、DOCX、HTMLZ、LIT、LRF、PDB、PDF and so on. Below is the detailed steps on how to convert MOBI to EPUB with Calibre Converter.


  1. Download and install Calibre on your computer.
  2. Add the MOBI eBooks on your computer or directly on your Kindle to this program. Open Calibre and on the main interface you can find “Add” option. Click it then choose the MOBI eBook to it.
  3. Convert MOBI to EPUB. Once the eBook has been imported, the imported eBook would be show up at the main interface of Calibre. Click “Convert books” on the top navigation bar.
  4. Select output format. Before starting converting, you can choose EPUB as the output. Then click “OK” button to get it started. Just wait in patience, you can see the conversion progress label on the right bottom corner.

Part 4: How to Convert MOBI to EPUB with Convertio Online Converter?

Besides above two professional eBook converters, you can also turn aside to an online converter which is much easier to handle with. Here, Convertio Online Converter can be your excellent choice. It is compatible with both Windows and Mac operating systems which supports up to 100 MB of file conversion. It is quite easy to complete and you don’t need any registrations.


  1. Log into Convertio official website and choose the conversion type “EBook converter”
  2. Load your targeted MOBI file on your computer by clicking “Select the file” on the main panel of the site. Also, you can choose to add the MOBI file from your Kindle directly making sure your Kindle has been connected to your computer.
  3. Choose the output eBook format EPUB.
  4. Start to convert MOBI to EPUB by clicking “Convert” button below. After several minutes, the eBook would be converted from MOBI to EPUB.

Part 5: Comparison & Conclusion

Referring to the top 3 MOBI to EPUB converters mentioned above, it is actually hard to tell which one is the best. But based on the comprehensive features and functions, Leawo eBook Converter would be much more powerful and excellent. Considering the functions, Leawo eBook Converter not only has the capability to convert various eBooks formats, like MOBI to EPUB, but also can be able to remove any DRM protections in eBooks which are not including in both Calibre Converter and online converter. Due to the processing power, Leawo eBook Converter can be 50X faster than other converters which would save more time on completing the conversion task. For more comparisons, please refer to the following table. What’s more attractive, the original quality of the eBooks would not have any losses and all the information including texts or graphs would be kept well. For the more detailed comparison tips, you can refer to the following table.

Product Leawo eBook Converter Calibre Converter Convertio Online Converter
DRM protection removal Y N N
Conversion Speed 50X higher Medium Fast
Output Quality 1:1 Lossless Some losses Some losses
Interface Easy-to-use Complex Easy-to-use
Portable Device Support Y N N
Networking Requirement N N Y
Installation Requirement Y Y N
Supported System Windows, Mac OS Windows, Mac OS Windows, Mac OS