How do I convert an FB2 file to EPUB?

The easiest method is Calibre: drag the .fb2 file into Calibre, right-click → Convert books → Convert individually, set output format to EPUB, click OK. Calibre preserves chapter structure, metadata, and cover image. Command line: ebook-convert book.fb2 book.epub. Online alternatives: CloudConvert and Convertio.

FB2 (FictionBook 2) is an XML-based ebook format popular in Russia and Eastern Europe. It stores text, metadata, and images in a single XML file. Natively supported by FBReader and Calibre. Most Western e-readers (Kindle, Kobo, Apple Books) don't support FB2 natively, so conversion to EPUB or MOBI is required.

Can I open an FB2 file on Kindle?

Not directly. Convert the FB2 to EPUB or AZW3 first using Calibre, then send to Kindle via the Send to Kindle app or email. Calibre's FB2-to-AZW3 output works reliably for fiction.

Does converting FB2 to EPUB preserve chapters and metadata?

Yes, when using Calibre. FB2 files have structured XML with a block (title, author, genre, cover) and with tags for chapters. Calibre maps these to EPUB chapters and OPF metadata correctly. Always verify the output EPUB in a reader before distributing.

How to Convert FB2 to EPUB (Free, Online, and Desktop Tools)

FB2 (FictionBook 2) is a popular Russian ebook format. Converting to EPUB makes your books compatible with Kindle, Apple Books, Kobo, and all major e-readers. Here's how to do it for free.

What Is FB2?

FB2 (FictionBook 2) is an XML-based ebook format developed in Russia. It is widely used on Litres.ru, Flibusta, and other Russian ebook platforms, and is natively supported by FBReader. Most Western e-readers don't support FB2 natively — converting to EPUB or MOBI is required.

Method 1: Calibre (Best Quality, Free)

Download and install Calibre from calibre-ebook.com.
Drag your .fb2 file into the Calibre library.
Right-click the book → Convert books → Convert individually.
Set Output format to EPUB. Click OK.

From the command line:

ebook-convert book.fb2 book.epub

Calibre preserves FB2 section structure as EPUB chapters, retains metadata (title, author, description), and includes the cover image if embedded.

Method 2: Pandoc

pandoc book.fb2 -o book.epub --standalone --toc

Pandoc handles standard FB2 well. Add --epub-cover-image=cover.jpg for a cover.

Method 3: Online Converters (No Install)

CloudConvert — supports FB2 → EPUB. Free tier (25 min/day). Good for fiction.
Zamzar — supports FB2 → EPUB. Free tier requires email delivery.
Convertio — supports FB2 → EPUB. Free tier has 100 MB file size limit.
FreeConvert — supports FB2 → EPUB. 1 GB free size limit.

FB2 to EPUB for Kindle

Amazon Kindle does not support FB2 natively. Convert FB2 → EPUB using Calibre, then send to Kindle via the Send to Kindle app. Alternatively, convert FB2 → AZW3 directly in Calibre (set output format to AZW3).

Preserving Metadata

FB2 files contain rich metadata in the <description> block: title, author, genre, annotation, cover art. Calibre reads these and populates EPUB OPF metadata correctly. After conversion, verify in Calibre's metadata editor (select book → press E).

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