Convert your ISBN

The ISBN Converter is a free tool that converts 13-digit ISBNs to 10-digit ISBNs, as well as 10 to 13. The converted ISBN will be returned directly below the entered ISBN. On January 1, 2007 the book industry transitioned to 13-digit ISBNs, phasing out the 10-digit ISBNs. What is an ISBN? The ISBN (International Standard Book Number) is a standardized number to identify books for global trade.

Please note that newer ISBNs starting with '9798' cannot be down-converted to 10-digit ISBNs. These books do not have 10-digit ISBNs.

ISBN 10 to 13 Converter

ISBN 10 to 13

ISBN:

ISBN 13 to 10 Converter

ISBN 13 to 10

ISBN:

Sample ISBN Location