IBAN Validator
Check if an IBAN number is valid. Enter the IBAN and instantly get information about country, bank and account number. 100% privacy - everything runs in your browser.
Check IBAN
Enter an IBAN number to validate
Country
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Bank
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BBAN
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Check Digits
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Bank Code
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Supported Countries
What is an IBAN Number?
IBAN stands for International Bank Account Number. It is an internationally standardized format for bank account numbers used throughout Europe and many other countries. An IBAN makes international payments easier and more secure.
How is an IBAN Structured?
- Country Code - The first 2 letters indicate the country (NL for Netherlands)
- Check Digits - 2 digits for error detection (MOD-97 algorithm)
- Bank Code - 4 letters identifying the bank (e.g. ABNA for ABN AMRO)
- Account Number - The remaining part is your personal account number
IBAN Validation: How Does It Work?
IBAN validation uses the MOD-97 algorithm (ISO 13616). The check digits are moved to the end, letters are converted to numbers, and the result is divided by 97. If the remainder is 1, the IBAN is valid. Our tool performs this calculation entirely in your browser.
Dutch Banks and Their Codes
- ABNA - ABN AMRO Bank
- INGB - ING Bank
- RABO - Rabobank
- SNSB - SNS Bank (de Volksbank)
- ASNB - ASN Bank
- TRIO - Triodos Bank
- BUNQ - Bunq
- KNAB - Knab