🏦 IBAN Validator
Validate International Bank Account Numbers. Check structure, extract components, and verify the mod-97 checksum.
About IBAN Validator
IBAN (International Bank Account Number) is a standard format for identifying bank accounts. This tool validates the structure and performs the mod-97 checksum verification.
FAQ
What is IBAN?
IBAN is an internationally agreed system of identifying bank accounts across national borders. It consists of a country code, two check digits, and the Basic Bank Account Number (BBAN).
How is the checksum calculated?
The IBAN is rearranged (move first 4 chars to end), letters converted to numbers (A=10, B=11, etc.), and the result is checked with mod-97. A valid IBAN yields remainder 1.
Which countries use IBAN?
Most European, Middle Eastern, and many other countries use IBAN. The US does not use IBAN natively.