Calculate IBAN from bank data

Generate IBAN from bank code and account number

Generate an IBAN directly in the browser from bank code, account number and country. IBAN-Test calculates the matching IBAN structure and helps validate entered bank data before further processing.

Generate IBAN now Check IBAN
Calculate quicklyEnter bank code and account number, select the country and generate an IBAN.
Validate directlyThe result can then be checked with the IBAN validation tool.
Available via APIIBAN generation is also available through the API for forms and processes.

generate IBAN

The check determines whether an IBAN can actually have been issued by a bank.

Recognize typographical errors or deliberate incorrect entries in good time and thereby save unnecessary costs for returned direct debits.

Simply enter your sort code and account number and the software will then generate your IBAN.

When the IBAN generator helps

The IBAN generator calculates an IBAN from bank code, account number and country. It is useful when existing account data should be converted into IBAN format or checked before further processing.

Calculate from bank data

Enter account number, bank code and country. IBAN-Test generates the matching IBAN structure.

Check the result

The generated IBAN can then be validated for plausibility and available bank data.

Automate workflows

For recurring processes, forms and internal systems, IBAN generation can be used through the API.

IBAN generation does not replace confirmation from the account-holding bank. It calculates a formally matching IBAN based on the bank data entered.

Bank data validation

Validation against bank directories

For these countries, we check IBANs against available bank directories and return bank details such as institution, city and BIC when available.

ALAlbania ADAndorra ATAustria BEBelgium BGBulgaria HRCroatia CYCyprus CZCzech Republic DKDenmark EEEstonia FIFinland FRFrance DEGermany GIGibraltar GRGreece HUHungary ISIceland IEIreland ITItaly LVLatvia LILiechtenstein LTLithuania LULuxembourg MTMalta MDMoldova MEMontenegro NLNetherlands MKNorth Macedonia NONorway PLPoland PTPortugal RORomania SMSan Marino RSSerbia SKSlovakia SISlovenia ESSpain SESweden CHSwitzerland VAVatican City

IBAN syntax check

Format checks for 115 IBAN formats

Check IBANs for a valid structure, correct length and checksum. This helps you catch typos and transposed digits before a payment fails. Additional bank validation against real bank directories is available for the countries listed above.

MCP Server for AI Agents - Connect AI clients to IBAN validation tools - https://www.iban-test.eu/mcp - API Documentation