How To Easily Convert Word To Mobi Or Epub Files

Convert Word Doc To Epub Or Mobi

It’s very easy to learn how to convert Word to mobi and epub. But why do you need to convert your Word document?

Most ebook reading devices use the epub format. But the mobi ebook format, or Kindle book format, is the only file type that can be read on Kindle devices and Kindle apps.

Converting is the only way that you can check and make sure that you correctly formatted your Microsoft Word document for ebook reading.

You need to do this before you upload your manuscript to a self-publishing service such as Amazon KDP, Smashwords, or Draft2Digital.

How to prepare your manuscript

Converting and checking your Word document and ebook formatting on your Kindle, iPad, or PC is vital.

When you convert Word to Kindle mobi format, you can see if there are any formatting errors in your docx or doc file. It’s always better to do this before you publish your ebook and it goes on sale.

Poorly formatted ebooks are a sales killer. So you really should take the time to learn how to check your ebook well before you publish it.

But before you start converting Word docx to epub or mobi, make sure your Word document is correctly formatted using Word Styles.

Good formatting in your Word document will make your ebook look and read much better for your potential ebook readers.

The most important formatting element is to make sure you use Heading 2 for your chapter titles. By doing this, your table of contents will be automatically created in your ebook.

You should use Hearing 1 for your book title, and normal for your text.


Check for mistakes

You should also perform a thorough grammar and spell-check. Grammarly is highly recommended as a grammar correction tool.

But for authors, Prowritingaid is the preferred writing tool because it works so effectively when analyzing long documents such as a book manuscript.

Either tool will help ensure that your manuscript is as error-free as possible before you start proofreading your ebook.

Now you are ready to convert either Word doc to epub format, or Word docx or doc to mobi Kindle format.

Don’t worry if you are not technically minded.

The conversion process from Word to mobi or epub is very easy, and you don’t need any special computer skills at all.


How to convert a file from Word to mobi or epub file format

The first step is to download a free software program called Calibre. It is a free open source program available for both PC and Mac.

Calibre comes with many features which you can learn about later. But as Word to a mobi and epub converter, it is one of the easiest and quickest tools to use.

How to convert a file from Word to mobi or epub file with Calibre

Once you install Calibre, there are two basic ways you can add your Word file.

The easiest way is to use your Word docx file.

If your manuscript is in the old doc format, all you need to do is do a save as in docx. This will create a new copy of your manuscript that you can now use.

The second way is to save your Word document in .html.

To do this, click on “save as” and then select the file type as .htm.

If you know how to edit HTML, this is the best time to clean up your HTML file before file converting.

But if you are new to ebook creation, you should use the Word .docx file type. It is much quicker and easier to convert.

But remember, if your Word document is in doc format, simply do a “save as” in .docx before you upload your file to Calibre.


Preparing for the conversion from Word to mobi and epub

Once you have your Word docx file saved and ready, go to Calibre and click on ‘Add Book’ to select your book’s Word file.

How to add a Word file to Calibre to create ebooks

Once you see that your book file is added and listed on the main screen of Calibre, click on ‘Edit Metadata.’

How to edit metadata in Calibre for ebooks

This will take you to the edit screen. This is where you can add all the details about your book and also add your book cover image.

The Calibre edit screen to change details or book cover

Once you have added all your data and cover, click OK.

You will go back to the home screen. Now click on ‘Convert Books’ in the top menu.

Calibre file conversion screen with output options

In the top right corner of the screen, select the file type epub from the book formats list and then click ok.

Your book will now be converted from Word to epub and saved in your Calibre Library.

Repeat the convert books process if you wish to convert your book again from Word to mobi for Amazon Kindle.

You will then have both epub and mobi files in your Calibre library.

It is so easy to convert Word doc to mobi or epub, or from epub to mobi.


More reading: How to print an ebook


Read your Word file as a mobi ebook on Kindle or epub on iPad

Now go to your Calibre Library and copy your new mobi and epub book files. It’s a good idea to check your file size to make sure it isn’t too big.

You can then load them onto your e-reader, iPad, or Kindle. You can use Send to Kindle also.

Now you will be able to see exactly how your new book will look when you published it as an ebook.

You should carefully proofread your new ebook on your device or app to make sure everything is perfect.

If you find any formatting errors or other edits you want to make, go back to your Word file and make the corrections. Then you can convert your new updated Word file in Calibre to check again.

You can open your epub file by using Apple iBooks. For mobi, use your Kindle or the Kindle app for your iPad, iPhone, PC, or Mac.

You can also use the ebook reader in Calibre to read your ebook on-screen.


Only for Mac users

If you use Word on an Apple computer, there is a quick and easy way to convert your manuscript to epub with Apple Pages.

All you need to do is open your doc or docx file extensions with Pages. Then you can export it directly to epub.

How to use Apple Pages to export directly to epub

However, you cannot export to mobi format with Pages. But this is a simple way to prepare an epub copy of your ebook for beta readers or proofreaders.


Something went wrong!

What if you discover formatting errors in your new ebook files after converting Word to mobi or epub? It usually means that there are issues with your Word document.

If you can’t correct the errors, the solution is to take the nuclear approach.

You can find detailed instructions in our article on how to apply the nuclear solution to your Word document to solve these problems.

You should always convert your doc or docx manuscript from Word to epub or mobi before you publish.

Then you can check and be absolutely sure that your ebook readers will read a beautifully formatted Kindle or epub ebook.

Derek Haines

A Cambridge CELTA English teacher and author with a passion for writing and all forms of publishing. My days are spent writing and blogging, as well as testing and taming new technology.

Avatar for Derek Haines

55 thoughts on “How To Easily Convert Word To Mobi Or Epub Files

  • Avatar for Helen Cherry
    August 20, 2021 at 5:50 pm

    I’m a first time Kindle publisher and this information is really helpful, thank you. I am also an EFL teacher and CELTA trainer!

  • Avatar for Elaine
    May 1, 2021 at 3:36 am

    I have a book of poetry that I am converting using Calibre (thank you for the recommendation).
    It looks okay so far, except for spacing after page breaks. Should poems have a lot of space after each one before the next one starts? Should I not be using page breaks after each page, and instead only at the end of a poem?
    Thanks kindly.

    • Avatar for Derek Haines
      May 1, 2021 at 9:09 am

      No, you don’t need a page break after each page. Only add one after the end of a poem or chapter.

  • Avatar for Diane Kern
    January 12, 2021 at 6:32 pm

    Thank you so much for providing this invaluable information. I am brand new to authoring a book and to the publishing process. I am writing a nonfiction interactive e-workbook (on career selection). It contains links to websites, questionnaires for the reader to complete and charts to be filled in. The goal is to tailor the responses to the specific reader.

    What advice do you have for converting my Word manuscript to an epub file, while incorporating these interactive elements ?

    • Avatar for Derek Haines
      January 12, 2021 at 6:40 pm

      Interactive elements are difficult if not impossible to add to an epub file, Diane. The best is to link to them from your ebook to a web page.

  • Avatar for Olusegun Solaogun
    September 15, 2020 at 1:54 pm

    I am just getting ready and learning to publish my first eBook. What i have learned reading through the comments here is a mountain of knowledge. Thank you so much

  • Avatar for Gary Jay
    July 22, 2020 at 4:43 pm

    All well in good for a simple fiction book, but what about Non-fiction with subheads? And section breaks from printed version to epub? You mention “make sure your Chapters” are heading 2. But what about subheads when doing non-fiction? I ran into huge problems with that and KINDLE. The KDP only creates one level chapter and all the subheads link EXCEPT one. I also had to take the print version and remove all the interesting fonts and dumb them down even though they are supposedly embedded; I also had to remove all section breaks and turn them all into page breaks. Any advise on how to handle all the links as well? Can you use bookmarks for example to jump around in an epub or KDP (for example, we have a list at the back that refers to earlier subheads. I created links for all these. They all work, except one, though they all SHOW as working. The TOC also doesn’t actually always go to the correct page. It may go to the bottom of the prior page or middle of the page. Any way to correct that?

    • Avatar for Derek Haines
      July 22, 2020 at 5:00 pm

      The only solution when you have complex formatting in an ebook is to use Calibre to edit in html. Then you can edit with much more precision.

  • Avatar for chacha1
    May 9, 2020 at 2:57 am

    This was fantastically helpful. I’ve been self-publishing since 2012 and only taking it seriously since 2018. Now am about ready to hit the bricks asking for reviews, and everyone wants MOBI. In the past forty minutes I have downloaded & installed Calibre, converted my nine published novels, and scanned through one of them to confirm the format is clean. THANK YOU.


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