Free · GG · 22 characters

Guernsey IBAN Calculator

Enter the bank code, branch code, account number to get the Guernsey IBAN with its check digits.

22IBAN characters
18BBAN characters
YesSEPA country
NoNational check digits

Guernsey IBAN structure

GGCountry code
38IBAN check digits
NREIBank code
240165Branch code
53683048Account number

GG + 2 check digits + 4 uppercase letters + 6 digits + 8 digits = 22 characters. The example is a synthetic test number. Check any Guernsey IBAN, with its bank and BIC, in the Guernsey IBAN checker, or create test numbers with the Guernsey IBAN generator.

Guernsey IBAN calculator FAQ

How is an IBAN from Guernsey calculated? The national account number (BBAN) is built from the bank code, branch code and account number, then the two IBAN check digits are computed with ISO 13616 MOD-97: move the country code and 00 to the end, turn letters into numbers and take 98 minus the remainder modulo 97.

What do I need to calculate a Guernsey IBAN? Bank code, Branch code, Account number. The result has 22 characters, starting with GG.

Does the calculator add the Guernsey national check digits? Yes. Where a country publishes a method (the French clé RIB, the Italian CIN, Spanish control digits and others) the calculator computes it; otherwise enter the digits printed on the bank document.

Is a calculated IBAN guaranteed to work? It is correct only if the bank details you typed are correct. Confirm the IBAN with the account holder or the bank before paying, and check it in the IBAN validator to see the bank and BIC.

IBAN calculators for other countries