IBAN Generator
Enter a country and BBAN (bank code + account number) to generate a structurally valid IBAN with correct MOD-97 check digits. All computation runs locally — nothing is transmitted.
Expected length for GB: 18 characters. Spaces and dashes are ignored.
How the check digits are calculated
- Start with {BBAN}{COUNTRY}00
- Convert letters to numbers (A=10 … Z=35)
- Compute 98 − (number mod 97), zero-padded to 2 digits
- Result = {COUNTRY}{CHECK}{BBAN}
Note: This tool generates structurally valid IBANs for testing and educational use. It cannot verify that the bank code or account number correspond to a real account. Do not use generated IBANs for fraudulent purposes.