You can download Kindle books to Windows or Mac, but the method depends on which app you use

Kindle books download to your computer through either the Kindle for PC/Mac app (Amazon's official reader) or through calibre (free third-party software that converts formats). The Kindle app is simpler if you only want to read on your computer. Calibre is the route if you want to convert books to other formats like EPUB or PDF, or move them to a different device.

Both methods require you to own the book — either through purchase or borrowing from your library's digital collection. You cannot download a Kindle book you do not own, and Amazon does not sell DRM-free versions of most titles, meaning the file stays locked to your Amazon account even after download.

The steps differ slightly between Windows and Mac, and between the two apps. Pick the method that matches what you want to do with the book after you download it.

Key Takeaways

  • The Kindle for PC or Mac app is the official way to download and read Kindle books on your computer, and requires no extra steps beyond signing in with your Amazon account.
  • Downloaded Kindle books stay encrypted and tied to your Amazon account — you cannot move them to other devices or convert them without third-party software.
  • Calibre is free software that can remove the encryption and convert Kindle books to EPUB, PDF, or other formats, but the process takes several extra steps.
  • Your library's digital collection may offer Kindle books through apps like OverDrive or Libby, which download the same way as purchased books.
  • Downloaded books take up storage space on your computer — check how much free space you have before downloading a large library.

Download Kindle books using the official Kindle app

The Kindle for PC (Windows) or Kindle for Mac app is the straightforward path. Download the app from Amazon's website, sign in with your Amazon account, and any book you own appears in your library ready to download.

On Windows: Go to amazon.com/kindle/download. Click "Kindle for PC" and follow the installer. Open the app, sign in with your Amazon email and password, and your library loads automatically. Find the book you want, click the download arrow next to it, and it saves to your computer. The app stores books in a folder on your hard drive, but you read them inside the app itself — you do not get a separate file you can move around.

On Mac: The process is identical. Visit amazon.com/kindle/download, select "Kindle for Mac", install it, sign in, and download books the same way. Mac stores the files in a different location than Windows, but the reading experience is the same.

The Kindle app works offline once a book is downloaded, so you can read without an internet connection. If you delete the book from the app, you can re-download it later at no cost — your purchase record stays in your Amazon account forever.

Convert Kindle books to other formats using calibre

If you want to read a Kindle book outside the Kindle app, or convert it to EPUB or PDF, you need calibre, which is free software available for Windows and Mac. Calibre removes the encryption from Kindle books and converts them to formats that work on other devices and readers.

First, download calibre from calibre-ebook.com. Install it and open the program. You will need to add your Kindle book file to calibre's library. The easiest way is to download the book using the Kindle app first (following the steps above), then locate the file on your computer. On Windows, Kindle books are usually stored in C:\Users\[YourUsername]\Documents\My Kindle Content. On Mac, look in ~/Library/Application Support/Kindle/Local Store/. Copy the .azw or .azw3 file.

In calibre, click "Add books" and select the Kindle file. Once it appears in your library, right-click it and choose "Convert books". Select your output format — EPUB is the most universal, PDF works on any device, and MOBI works on older e-readers. Click "OK" and calibre converts the file. The converted book appears in your calibre library and you can export it to any device or email it to yourself.

This process works only for books without publisher restrictions. Some publishers block conversion, and calibre will not be able to process those files. If conversion fails, the book is locked and you cannot convert it.

Download Kindle books from your library

Many public libraries offer Kindle books through apps like OverDrive or Libby. These apps work similarly to the Kindle app — you borrow the book, it downloads to your computer, and you read it in the app. The book automatically returns after the loan period ends, usually 14 or 21 days.

To borrow a Kindle book from your library, open the OverDrive or Libby app (or visit their websites), search for the book, and click "Borrow". The app asks which device you want to send it to — select "Kindle" and the book downloads to your Kindle app on your computer. You read it the same way as a purchased book, except it disappears from your library when the loan expires.

Not all library books are available as Kindle editions. If a book shows only "ebook" or "EPUB" as an option, you cannot send it to Kindle — you would read it in the OverDrive or Libby app instead, or convert it using calibre if the library's DRM allows it.

Check your computer's storage before downloading a large library

Kindle books are usually small — most novels are 1 to 5 MB — but if you download hundreds of books, the total adds up. Before you download your entire library, check how much free space your computer has.

On Windows, right-click the C: drive, select "Properties", and look at the "Free space" number. On Mac, click the Apple menu, select "About This Mac", go to "Storage", and see how much space is available. If you have less than 10 GB free, consider downloading only the books you plan to read soon, or moving older books to an external hard drive or cloud storage.

The Kindle app itself takes about 200 MB. Calibre takes about 300 MB. These are small compared to video or photo files, but worth knowing if your computer is already nearly full.

Troubleshooting common download problems

If a book will not download in the Kindle app, first check that you own it. Go to amazon.com, sign in, and look at "Your Content and Devices" under "Account". If the book is listed there, it is yours and should download. If it is not listed, you do not own it and cannot download it.

If the book is listed but still will not download, try signing out of the Kindle app and signing back in. Close the app completely, reopen it, and try downloading again. If that does not work, uninstall the app, restart your computer, and reinstall it. This clears out corrupted files that sometimes block downloads.

If calibre cannot convert a book, the publisher has locked it with DRM (Digital Rights Management) that calibre cannot remove. You can still read it in the Kindle app, but you cannot convert it to another format or move it to a different device. This is a publisher restriction, not a problem with your computer.

If you see an error message about your device not being registered, go to amazon.com/myx, sign in, and look for "Manage Your Devices". Make sure your computer is listed. If it is not, click "Register a new device" and follow the prompts. Then try downloading again.

Frequently Asked Questions

Can I read a Kindle book on my computer without downloading it?

Yes. Amazon's Kindle Cloud Reader (a web app at read.amazon.com) lets you read any book you own directly in your web browser without downloading anything. You need an internet connection, but no app installation. This is useful if you switch between devices or do not want to use up storage space.

What happens if I delete a Kindle book from my computer?

The book stays in your Amazon account. You can re-download it anytime at no cost. Deleting it from your computer just removes the file — it does not remove your ownership or purchase history.

Can I share a downloaded Kindle book with someone else?

No. Kindle books are tied to your Amazon account and encrypted so only you can read them. You cannot copy the file to another person's computer or device. The other person would need to purchase or borrow the book themselves.

Do I need an internet connection to read a downloaded Kindle book?

No. Once downloaded, you can read it offline in the Kindle app. The app only needs internet to download new books or sync your reading progress across devices.

Is it legal to convert Kindle books using calibre?

Converting books you own for personal use is legal in most places, but removing DRM (the encryption) is a gray area legally depending on your country. Calibre is widely used and available, but some publishers argue that removing their encryption violates copyright law. Check your local laws if you are concerned.