Free · CH · 21 characters

Switzerland IBAN Calculator

Enter the bank clearing number (iid), account number to get the Switzerland IBAN with its check digits.

21IBAN characters
17BBAN characters
YesSEPA country
NoNational check digits

Switzerland IBAN structure

CHCountry code
12IBAN check digits
83002Bank clearing number (IID)
352997698596Account number

CH + 2 check digits + 5 digits + 12 letters or digits = 21 characters. The example is a synthetic test number. Check any Switzerland IBAN, with its bank and BIC, in the Switzerland IBAN checker, or create test numbers with the Switzerland IBAN generator.

Switzerland IBAN calculator FAQ

How is an IBAN from Switzerland calculated? The national account number (BBAN) is built from the bank 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 Switzerland IBAN? Bank clearing number (IID), Account number. The result has 21 characters, starting with CH.

Does the calculator add the Switzerland 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