IBAN Validation Calculator

Verify and validate International Bank Account Numbers (IBAN) with real-time calculation and country-specific format checking

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7,900+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

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About This Tool

This comprehensive IBAN verification tool allows you to validate International Bank Account Numbers from over 80 countries. It performs real-time validation using the official ISO 13616 standard, including country-specific length checks, format validation, and the modulo 97 algorithm. The tool provides detailed breakdown of validation results, country information, and formatted IBAN display. No server-side processing required - all calculations happen securely in your browser.

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How to Use

Select the country from the dropdown menu or let the tool auto-detect it from the IBAN
Enter the IBAN in the input field (with or without spaces)
Click 'Verify IBAN' to perform validation
View detailed results including validity status, country information, and validation breakdown
Use 'Clear' to reset the form and start over

Frequently Asked Questions

Find Quick Answers

What is an IBAN?

IBAN (International Bank Account Number) is an internationally agreed system of identifying bank accounts across national borders to facilitate the automatic processing of money transfers. It consists of up to 34 alphanumeric characters including country code, check digits, and basic bank account number.

Which countries are supported?

The tool supports all IBAN-using countries including all EU members, UK, Switzerland, Norway, Turkey, Saudi Arabia, UAE, and many others - over 80 countries in total with their specific IBAN formats and lengths.

How does the validation work?

The tool validates IBANs using the official ISO 13616 standard: 1) Check country code validity, 2) Verify length matches country specification, 3) Validate format (letters and digits in correct positions), 4) Perform modulo 97 calculation on rearranged IBAN to verify check digits.

Is my IBAN data secure?

Yes, all validation happens entirely in your browser. No IBAN data is sent to any server or stored anywhere. The tool works completely client-side for maximum privacy and security.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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