ISBN-10 to ISBN-13 Converter

Convert legacy 10-digit ISBNs into modern 13-digit Bookland EANs by adding 978 prefix and recalculating check digits.

How It Works & Processing Standards

Convert legacy 10-digit ISBNs into modern 13-digit Bookland EANs by adding 978 prefix and recalculating check digits.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Maximum input length: 100,000 characters

ISBN-10 to ISBN-13 Converter is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use ISBN-10 to ISBN-13 Converter

  1. 1
    Enter ISBN-10Type legacy 10-digit ISBN (e.g. 0-306-40615-2).
  2. 2
    Obtain ISBN-13Copy the upgraded 13-digit ISBN string.

Common Use Cases

  • Modernizing legacy book catalog databases to comply with current e-commerce publishing standards
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