How do I send an EPUB to my Kindle?

Three methods work: (1) Email the EPUB to your @kindle.com address — find it in Kindle settings under My Account → Send-to-Kindle Email; (2) Use the Send to Kindle website at amazon.com/sendtokindle — upload and select your device; (3) Use the Send to Kindle iOS or Android app — share the EPUB from any app. All three deliver the file over Wi-Fi within minutes.

What is my Kindle email address?

Your Kindle email is in the format yourname@kindle.com. Find it in: Kindle app → More → Settings → My Account → Send-to-Kindle Email, or on Amazon's website at Manage Your Content and Devices → Devices → select your Kindle → Send-to-Kindle Email. You must add your sender email to Amazon's approved sender list before emailing files.

Does Kindle accept EPUB files?

Yes. Since late 2022, the Send to Kindle service accepts EPUB files directly. Email an EPUB to your @kindle.com address or use the Send to Kindle website or app. Amazon converts the EPUB to its internal KFX format and delivers it to your device via Wi-Fi. MOBI is no longer accepted by Send to Kindle.

What is the file size limit for Send to Kindle?

Send to Kindle supports files up to 50 MB. Most EPUBs converted from PDFs are well under this — a typical 300-page academic paper converts to an EPUB of 1–5 MB. For large EPUBs with many high-resolution images, consider reducing image quality before conversion. The old 25 MB email attachment limit no longer applies.

How to Send an EPUB to Your Kindle — Email, App, and Website (2026)

Amazon added native EPUB support to Kindle in September 2022. You no longer need to convert to MOBI — you can send an EPUB directly to any Kindle device or the Kindle app. Here are the three ways to do it.

Method 1: Send to Kindle website (easiest)

Go to amazon.com/sendtokindle
Sign in with your Amazon account
Click Select file and choose your EPUB
Choose which Kindle device to send it to
Click Send

The EPUB appears in your Kindle library within a minute or two. Works from any browser — no app needed.

File size limit: 200 MB per file. Most EPUBs are well under 10 MB.

Method 2: Send to Kindle email address

Every Kindle device has a personal email address (e.g., yourname_abc@kindle.com).

Find your Kindle email: sign in to Amazon → Manage Your Content and Devices → Devices tab → click your Kindle → find Send-to-Kindle Email
From your email client, compose a new message to that address
Attach the EPUB file
Subject line does not matter — leave it blank or write anything
Send the email from an address that is on your approved sender list

Approved sender list: Go to Manage Your Content and Devices → Preferences → Personal Document Settings → add your sending email address to the Approved Personal Document Email List.

Method 3: Send to Kindle iOS/Android app

Download the Send to Kindle app (free — separate from the Kindle reading app)
On iOS: share the EPUB from any app (Files, Mail, etc.) → tap Share → Send to Kindle
On Android: open the EPUB in Files, tap Share, then select Send to Kindle
Choose your device and tap Send

What formats does Kindle accept?

As of 2022, Kindle Personal Documents Service accepts:

EPUB (.epub) — now fully supported
PDF (.pdf) — works but fixed layout, no reflow
MOBI (.mobi) — old format, still accepted
DOC/DOCX, HTML, RTF, TXT

EPUB is the best format to send — Kindle converts it internally to its AZW3 format and the result looks like a native Kindle book with adjustable fonts and dark mode.

PDF vs EPUB on Kindle: why EPUB is better

If you have a PDF and want to read it comfortably on your Kindle, convert it to EPUB first. When you send a PDF to Kindle:

Text is fixed-size — you cannot adjust the font size
Two-column academic papers stay two-column and tiny
Kindle's "Enhanced Typesetting" and Word Wise features do not apply

When you send an EPUB to Kindle:

Full font size and typeface control
Dark mode, Sepia mode, and custom margins
Kindles Bookerly font, page turns, progress indicator — all work correctly

How to convert a PDF to EPUB before sending to Kindle

Go to toolkit.bot/pdf2epub — free, no account, no install
Upload your PDF — conversion takes 15–60 seconds
Download the EPUB
Send to Kindle using any method above

The converted EPUB handles two-column layouts, scanned PDFs (via OCR), footnotes, and heading structure — all of which display correctly on Kindle.

Convert your PDF to EPUB — then send it to Kindle in one click.

Convert PDF to EPUB →