📚 ISBN Converter

Professional ISBN-10 and ISBN-13 converter and validator for books and publishing

📋 General
🔄 Converter
📖 Formats
💡 Examples
📖 Guide
🎯 Professional ISBN Converter
📚 ISBN Conversion
Seamless conversion between ISBN-10 and ISBN-13 formats with validation and verification.
  • ISBN-10 to ISBN-13 conversion
  • ISBN-13 to ISBN-10 conversion
  • Check digit validation
  • Format verification
  • Real-time processing
✅ Validation Features
Comprehensive validation with detailed error checking and format compliance.
  • Check digit calculation
  • Format structure validation
  • Length verification
  • Character validation
  • Compliance checking
💼 Publishing Applications
Essential tool for publishers, libraries, and book industry professionals.
  • Book cataloging systems
  • Library management
  • Publishing workflows
  • Inventory management
  • Sales and distribution
📖
ISBN-10 Example
0-13-468699-3
📚
ISBN-13 Example
978-0-13-468699-8
📝
Programming Book
0-321-12521-5
💻
Technical Manual
978-0-596-51774-8
🔄 ISBN Converter
🔍 Auto Detect
⚙️ Manual
📊 Conversion Result
Enter an ISBN number to convert...
Input Format: -
Output Format: -
Check Digit: -
Status: -
📖 ISBN Format Specifications
📚 ISBN-10 Format
The original 10-digit ISBN format used until 2007.
  • 10 digits total length
  • Country/Group identifier
  • Publisher identifier
  • Title identifier
  • Check digit (0-9 or X)
📖 ISBN-13 Format
The current 13-digit ISBN format based on EAN-13.
  • 13 digits total length
  • 978 or 979 prefix (Bookland)
  • Country/Group identifier
  • Publisher identifier
  • Title identifier
  • Check digit (0-9)
🔢 Check Digit Calculation
Mathematical algorithms used for ISBN validation.
  • ISBN-10: Modulo 11 algorithm
  • ISBN-13: Modulo 10 algorithm
  • Weighted sum calculation
  • Error detection capability
  • Automatic validation
🌍 Country Codes
Regional identifiers in ISBN numbering system.
  • 0/1: English-speaking countries
  • 2: French language
  • 3: German language
  • 4: Japan
  • 5: Russia and former USSR
📝 Formatting Standards
Standard formatting and display conventions.
  • Hyphen separation by groups
  • No spaces in digital formats
  • Uppercase letters (ISBN-10 X)
  • Leading zeros preservation
  • Barcode compatibility
🔄 Conversion Rules
Rules and limitations for ISBN conversion.
  • All ISBN-10 can convert to ISBN-13
  • ISBN-13 with 978 prefix can convert to ISBN-10
  • ISBN-13 with 979 prefix cannot convert
  • Check digits are recalculated
  • Format validation required
💡 ISBN Examples & Use Cases
📚 Publishing Industry
ISBN conversion in publishing and book production workflows.
  • Book registration systems
  • Publishing house databases
  • Print-on-demand services
  • Digital book platforms
  • Distribution networks
🏛️ Library Systems
ISBN management in library and cataloging systems.
  • Library management systems
  • Catalog maintenance
  • Interlibrary loans
  • Collection development
  • Acquisition processes
🛒 Retail & E-commerce
ISBN applications in book retail and online sales.
  • Online bookstore databases
  • Inventory management
  • Point-of-sale systems
  • Price comparison services
  • Marketplace integrations
📊 Data Management
ISBN conversion for data migration and system integration.
  • Database migrations
  • System integrations
  • Legacy system updates
  • Data cleaning processes
  • Format standardization
🔍 Academic Research
ISBN usage in academic and research applications.
  • Citation management
  • Research databases
  • Bibliographic records
  • Academic publishing
  • Institutional repositories
🌐 Global Standards
International ISBN standards and compliance requirements.
  • ISO 2108 standard compliance
  • International ISBN Agency
  • National ISBN agencies
  • Global book trade
  • Cross-border commerce
📖 ISBN Guide & Best Practices
🔤 ISBN Structure
Understanding the components of ISBN numbers.
  • Prefix (ISBN-13 only): 978 or 979
  • Group identifier: Country/language
  • Publisher identifier: Varies by country
  • Title identifier: Unique per book
  • Check digit: Error detection
✅ Validation Process
How ISBN validation algorithms work.
  • Length verification (10 or 13 digits)
  • Character validation (digits and X)
  • Check digit calculation
  • Modular arithmetic verification
  • Format compliance checking
🔄 Conversion Algorithm
Step-by-step ISBN conversion process.
  • Remove formatting and spaces
  • Validate input format
  • Add/remove prefix (978)
  • Recalculate check digit
  • Apply standard formatting
📝 Formatting Guidelines
Standard formatting practices for ISBN display.
  • Use hyphens to separate groups
  • Maintain consistent spacing
  • Preserve leading zeros
  • Use uppercase for X check digit
  • Follow international standards
⚠️ Common Issues
Typical problems and troubleshooting tips.
  • Invalid check digits
  • 979 prefix conversion limitations
  • Incorrect length validation
  • Character encoding issues
  • Format inconsistencies
🏆 Best Practices
Professional recommendations for ISBN handling.
  • Always validate before processing
  • Store both formats when possible
  • Use consistent formatting
  • Implement error handling
  • Follow industry standards