About ISBN-10 ↔ ISBN-13 Universal Converter
Convert seamlessly between legacy 10-digit ISBN and current 13-digit ISBN. Recalculates the Modulo-11 or Modulo-10 verification check digit automatically and applies standard publishing hyphenation formatting.
Key Capabilities & Features
- Bidirectional conversion between ISBN-10 and ISBN-13
- Recalculates check digits with Modulo-11 X character support
- Applies official hyphenated publishing notation (978-X-XXX-XXXXX-X)
- One-click copy of raw and hyphenated converted ISBNs
How to Use ISBN-10 ↔ ISBN-13 Universal Converter
1
Paste ISBN
Type or paste either a 10-digit or 13-digit ISBN.
2
Automatic Conversion
View the instant reciprocal conversion and check digit.
3
Copy Formatted String
Copy the standard hyphenated string to your clipboard.
Privacy & In-Browser Execution Guarantee
Conversions execute 100% in local memory with zero external requests.
Frequently Asked Questions
Can an ISBN-13 starting with 979 be converted to ISBN-10?
No. The 979 prefix was introduced specifically because the 10-digit numbering system ran out of numbers. Only 978 ISBNs can map to ISBN-10.
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