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ISBN Converter Tool
ISBN Converter Tool – Convert ISBN-10 to ISBN-13 Online
Welcome to our ISBN Converter Tool! Designed to be simple, fast, and free, this tool is perfect for publishers, librarians, booksellers, and book enthusiasts. Convert ISBN-10 to ISBN-13 and vice versa in just a few clicks. Say goodbye to manual calculations and let our tool handle it for you!
- June 28, 2024
- 8:33 am
- Admin

What is an ISBN?
ISBN stands for International Standard Book Number. It is a unique numeric identifier assigned to books, helping publishers, libraries, and retailers categorize and track publications.
There are two main types of ISBNs:
- ISBN-10:
A 10-digit code used before 2007. The 10-digit ISBN format was developed by the International Organization for Standardization (ISO) and was published in 1970 as international standard ISO 2108.141 The United

- ISBN-13:
Introduced in 2007, is a modern 13-digit code that aligns with the EAN-13 barcode system. It starts with a prefix (usually “978” or “979”) and follows the same structure as ISBN-10 but includes additional digits.

How to Convert ISBN-10 to ISBN-13?
Converting ISBN-10 to ISBN-13 is straightforward when you know the process:
- Add the Prefix: Start with “978” at the beginning of the ISBN-10.
- Remove the Check Digit: Discard the last digit of the ISBN-10.
- Calculate the New Check Digit: Use a formula that alternates multiplying digits by 1 or 3, then take the modulo 10 of the total.
Example:
- Original ISBN-10: 0-123-45678-9
- Step 1: Add “978” prefix: 978-0-123-45678
- Step 2: Remove the old check digit: 978-0-123-45678
- Step 3: Calculate new check digit: 978-0-123-45678-6
Using our ISBN Converter tool automates this process, ensuring error-free results!
ISBN Format: Understand ISBN-10 vs ISBN-13
ISBN-10 Format
- Contains 10 digits.
- Example: 0-123-45678-9
- Components:
- Group Identifier: Indicates country or language.
- Publisher Code: Identifies the publisher.
- Title Code: Identifies the book.
- Check Digit: Validates the ISBN.
ISBN-13 Format
- Contains 13 digits.
- Example: 978-0-123-45678-6
- Components:
- Prefix: Usually “978” or “979.”
- Group, Publisher, and Title Codes: Same as ISBN-10.
- Check Digit: Calculated using a modulo 10 formula.

How to Use the ISBN Converter Tool?
Our tool is incredibly easy to use! Follow these simple steps:
- Enter the ISBN: Input the 10-digit or 13-digit ISBN into the field.
- Click “Convert”: Instantly view your converted ISBN on the screen.
You can also choose to display the ISBN with or without hyphens (“-“), depending on your preference.
ISBN Converter Tool
Note: ISBN Converter Tool allows for the seamless conversion of both ISBN-10 to ISBN-13 and ISBN-13 to ISBN-10 formats. Simply input the ISBN in the appropriate field, and the tool will automatically provide the corresponding ISBN number. For any queries or further assistance, please refer to our FAQs or Contact Us for support.
Frequently Asked Questions (FAQs)
What is the difference between ISBN-10 and ISBN-13?
ISBN-10 is the older format with 10 digits, while ISBN-13 is the updated format with 13 digits. The latter is compatible with modern barcode systems.
Why convert ISBN-10 to ISBN-13?
Converting ISBN-10 to ISBN-13 ensures compatibility with current publishing and retail systems, as ISBN-13 is now the global standard.
Can ISBN-13 be converted back to ISBN-10?
Yes, but only if the ISBN-13 starts with the “978” prefix. Use our tool for quick and error-free conversion.
Is the ISBN Converter Tool free?
Yes, our tool is 100% free to use for everyone.